Medicare Enrolled
Dr. Chainarong Limvarapuss, MD
Hematology & Oncology · Vallejo, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Limvarapuss from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Limvarapuss
Dr. Chainarong Limvarapuss is a hematology & oncology specialist in Vallejo, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Limvarapuss performed 162,151 Medicare services across 5,332 unique beneficiaries.
Between the years covered by Open Payments, Dr. Limvarapuss received a total of $58,644 from 97 pharmaceutical and/or device companies across 1429 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Limvarapuss is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 4% volume in CA
$58,644 industry payments
Medicare Practice Summary
Medicare Utilization ↗162,151
Medicare services
Top 4% in CA for hematology & oncology
5,332
Unique beneficiaries
$15
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~8,534 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Iron infusion (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
48,450 | $0 | $2 |
| Pembrolizumab injection (Keytruda) | 28,800 | $43 | $70 |
| Denosumab injection (Prolia/Xgeva) | 15,917 | $18 | $30 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
10,500 | $0 | $1 |
| Injection, heparin sodium, (heparin lock flush), per 10 units | 6,530 | $0 | $1 |
| Epoetin alfa injection (Procrit) for anemia An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis. |
5,460 | $6 | $20 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
4,800 | $1 | $3 |
| Injection, granisetron hydrochloride, 100 mcg | 4,290 | $0 | $4 |
| Epoetin alfa injection (Retacrit) for anemia An injection of a biosimilar form of epoetin alfa used for non-end-stage renal disease purposes. The dose administered is 1000 units. |
3,010 | $6 | $20 |
| Injection, potassium chloride, per 2 meq | 2,595 | $0 | $2 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
2,563 | $15 | $81 |
| Albumin infusion, 25%, 20 ml This procedure involves the intravenous administration of a 20 ml dose of 25% human albumin solution. |
2,205 | $17 | $60 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
2,201 | $8 | $20 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
2,106 | $109 | $299 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
2,084 | $8 | $40 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
1,872 | $8 | $40 |
| Normal saline infusion, 250 cc Administration of 250 cubic centimeters of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater fluid. |
1,568 | $1 | $5 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
1,364 | $0 | $2 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
1,253 | $12 | $64 |
| Liver function blood test panel | 1,036 | $8 | $30 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
972 | $12 | $64 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
914 | $6 | $30 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
870 | $63 | $200 |
| Anti-nausea injection (Aloxi/palonosetron) | 830 | $1 | $50 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
672 | $7 | $40 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
620 | $13 | $50 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
614 | $1 | $10 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
579 | $1 | $7 |
| Pegfilgrastim-apgf injection An injection of pegfilgrastim-apgf, a biosimilar medication. The dose specified is 0.5 mg. |
549 | $86 | $337 |
| Normal saline infusion, 500 ml Administration of sterile normal saline solution through an intravenous line. This procedure involves the infusion of a 500 ml unit of the solution. |
537 | $1 | $8 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
441 | $151 | $319 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
428 | $130 | $400 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
405 | $1 | $8 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
392 | $19 | $60 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
391 | $28 | $100 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
361 | $14 | $60 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
343 | $15 | $80 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
273 | $20 | $80 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
256 | $2 | $8 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
248 | $0 | $15 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
232 | $68 | $122 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
215 | $27 | $100 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
202 | $16 | $75 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
187 | $9 | $60 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 125 | 185 | $20 | $80 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
183 | $35 | $159 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
172 | $103 | $183 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 | 170 | $20 | $80 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
143 | $64 | $184 |
| CA 19-9 tumor antigen test A blood test that measures the level of CA 19-9, a substance that can be found in the blood of some people with cancer. This quantitative analysis detects and measures the specific tumor antigen. |
127 | $20 | $37 |
| 5% dextrose/water (500 ml = 1 unit) | 126 | $1 | $5 |
| Injection, furosemide, up to 20 mg | 122 | $0 | $9 |
| PSA test (prostate cancer screening) | 106 | $18 | $60 |
| Intravenous push injection of new drug or substance A healthcare provider injects a new medication or substance directly into a vein using a push technique. |
86 | $55 | $203 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
76 | $32 | $172 |
| Alpha-fetoprotein (AFP) level test A blood test that measures the amount of alpha-fetoprotein in the serum. This test is used to monitor certain health conditions. |
75 | $16 | $30 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
74 | $10 | $60 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
72 | $146 | $350 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
58 | $95 | $325 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
58 | $68 | $197 |
| New patient office visit, complex (60-74 min) | 48 | $182 | $400 |
| Home health agency supervision, complex multidisciplinary care Supervision by a physician or allowed practitioner for a patient receiving Medicare-covered services from a participating home health agency. This involves complex and multidisciplinary care modalities, with the patient not present during the supervision. |
47 | $91 | $220 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
33 | $252 | $422 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
22 | $100 | $125 |
| Morphine sulfate injection, up to 10 mg An injection of morphine sulfate administered in a dose of up to 10 mg. |
17 | $2 | $6 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
16 | $49 | $150 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
34.0% high complexity
55.7% medium
10.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$58,644
Total received (2018-2024)
Avg $8,378/year across 7 years
Top 11% in CA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
97
Companies
1,429
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$29,873 (50.9%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$24,927 (42.5%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$3,844 (6.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$5,772
2023
$8,200
2022
$14,191
2021
$4,635
2020
$7,139
2019
$15,465
2018
$3,242
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
US Oncology Corporate, Inc.
$1,390
AstraZeneca Pharmaceuticals LP
$347
Lilly USA, LLC
$338
Novartis Pharmaceuticals Corporation
$332
Janssen Biotech, Inc.
$302
PFIZER INC.
$267
Celgene Corporation
$246
Merck Sharp & Dohme LLC
$239
Daiichi Sankyo Inc.
$181
Karyopharm Therapeutics Inc.
$175
GlaxoSmithKline, LLC.
$174
Takeda Pharmaceuticals U.S.A., Inc.
$117
Alexion Pharmaceuticals, Inc.
$110
Genentech USA, Inc.
$109
Eisai Inc.
$104
ABBVIE INC.
$99
Rigel Pharmaceuticals, Inc.
$95
Gilead Sciences, Inc.
$87
GENZYME CORPORATION
$84
ARRAY BIOPHARMA INC
$82
E.R. Squibb & Sons, L.L.C.
$71
Incyte Corporation
$57
Stemline Therapeutics Inc.
$55
BeiGene USA, Inc.
$52
PharmaEssentia USA Corporation
$51
SpringWorks Therapeutics, Inc.
$50
Regeneron Healthcare Solutions, Inc.
$44
SERVIER PHARMACEUTICALS LLC
$43
Deciphera Pharmaceuticals Inc.
$40
Spectrum Pharmaceuticals Inc.
$36
Mirati Therapeutics, Inc.
$33
Ipsen Biopharmaceuticals, Inc
$32
TAIHO ONCOLOGY, INC.
$31
Coherus Biosciences Inc.
$30
ADC Therapeutics America, Inc.
$28
SOBI, INC
$28
Organon Llc
$26
Kyowa Kirin, Inc.
$26
MorphoSys, US Inc.
$24
Aveo Pharmaceuticals, Inc.
$23
Agios Pharmaceuticals, Inc.
$22
Biocon Biologics Inc
$22
Sumitomo Pharma America, Inc.
$21
Apellis Pharmaceuticals, Inc.
$20
EMD Serono, Inc.
$15
Genmab U.S., Inc.
$14
Top 3 companies account for 35.9% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$11,764
Kite Pharma, Inc.
$6,394
Celgene Corporation
$4,732
Aurobindo Pharma USA, Inc.
$3,553
BeiGene USA, Inc.
$3,284
US Oncology Corporate, Inc.
$2,888
PFIZER INC.
$1,689
Janssen Biotech, Inc.
$1,538
Regeneron Healthcare Solutions, Inc.
$1,501
Lilly USA, LLC
$1,474
AstraZeneca Pharmaceuticals LP
$1,453
Amgen Inc.
$1,182
Genentech USA, Inc.
$969
E.R. Squibb & Sons, L.L.C.
$874
GENZYME CORPORATION
$850
McKesson Specialty Care Distribution, LLC
$812
Merck Sharp & Dohme Corporation
$761
Takeda Pharmaceuticals U.S.A., Inc.
$750
Seagen Inc.
$701
GlaxoSmithKline, LLC.
$700
Astellas Pharma US Inc
$650
Merck Sharp & Dohme LLC
$579
Daiichi Sankyo Inc.
$552
Alexion Pharmaceuticals, Inc.
$518
Eisai Inc.
$497
Incyte Corporation
$476
Pharmacyclics LLC, An AbbVie Company
$447
Gilead Sciences, Inc.
$447
TESARO, Inc.
$357
Karyopharm Therapeutics Inc.
$352
Rigel Pharmaceuticals, Inc.
$253
ARRAY BIOPHARMA INC
$243
Bayer HealthCare Pharmaceuticals Inc.
$237
EISAI INC.
$230
Clovis Oncology, Inc.
$219
JAZZ PHARMACEUTICALS INC.
$195
Exelixis Inc.
$192
Mirati Therapeutics, Inc.
$172
EMD Serono, Inc.
$159
Myovant Sciences Inc.
$158
Ipsen Biopharmaceuticals, Inc
$148
Stemline Therapeutics Inc.
$147
Pharmacyclics LLC, an AbbVie Company
$140
SERVIER PHARMACEUTICALS LLC
$136
Boehringer Ingelheim Pharmaceuticals, Inc.
$135
SOBI, INC
$135
Jazz Pharmaceuticals Inc.
$133
Taiho Oncology, Inc.
$129
Acrotech Biopharma LLC
$126
Emmaus Medical, Inc.
$126
Dendreon Pharmaceuticals LLC
$122
Organon LLC
$119
Blueprint Medicines Corporation
$117
Apellis Pharmaceuticals, Inc.
$116
Foundation Medicine, Inc.
$112
Agios Pharmaceuticals, Inc.
$109
PharmaEssentia USA Corporation
$108
Epizyme, Inc.,
$103
Myriad Genetic Laboratories, Inc.
$101
ABBVIE INC.
$99
AMAG Pharmaceuticals, Inc.
$92
Sobi, Inc
$86
Global Blood Therapeutics, Inc.
$83
Kyowa Kirin, Inc.
$68
Deciphera Pharmaceuticals Inc.
$58
SANOFI-AVENTIS U.S. LLC
$53
ADC Therapeutics America, Inc.
$52
Sumitomo Pharma America, Inc.
$51
SpringWorks Therapeutics, Inc.
$50
Spectrum Pharmaceuticals Inc.
$50
Acceleron Pharma, Inc.
$48
TerSera Therapeutics LLC
$47
Octapharma USA, Inc.
$44
Seattle Genetics, Inc.
$44
Alnylam Pharmaceuticals Inc.
$42
AVEO Pharmaceuticals, Inc.
$41
MorphoSys, US Inc.
$41
Heron Therapeutics, Inc.
$40
GE HealthCare
$39
Roche Diagnostics Corporation
$35
TAIHO ONCOLOGY, INC.
$31
Coherus Biosciences Inc.
$30
Organon Llc
$26
Aveo Pharmaceuticals, Inc.
$23
Biocon Biologics Inc
$22
Bayer Healthcare Pharmaceuticals Inc.
$21
Teva Pharmaceuticals USA, Inc.
$19
MEDIVATION FIELD SOLUTIONS LLC
$18
Mylan Institutional Inc.
$17
Amneal Pharmaceuticals LLC
$17
Servier Pharmaceuticals LLC
$15
Genmab U.S., Inc.
$14
AbbVie Inc.
$14
Lexicon Pharmaceuticals, Inc.
$13
TOLMAR Pharmaceuticals, Inc.
$12
AbbVie, Inc.
$12
Dova Pharmaceuticals
$12
Top 3 companies account for 39.0% of all-time payments
Associated products mentioned in payments ›
ABECMA · ADAKVEO · ADCETRIS · AFINITOR · ALUNBRIG · AUGTYRO · AVASTIN · AYVAKIT · Alecensa · Aliqopa · Aranesp · Avastin · BELEODAQ · BENDEKA · BESREMI · BLENREP · BOSULIF · BRAC CDx · BRACAnalysis · BRAFTOVI · BRUKINSA · Balversa · Bavencio · Blincyto · CABOMETYX · CALQUENCE · CARVYKTI · CINVANTI · COSELA · CYRAMZA · Cabometyx · Cinvanti · DARZALEX · DOPTELET · Doptelet · ELIGARD · ELIQUIS · ELITEK · ELREXFIO · ELZONRIS · EMPLICITI · ENHERTU · EPKINLY · ERBITUX · ERLEADA · Empaveli · Endari · Enhertu · Epkinly · Erleada · FERAHEME · FOLOTYN · FOTIVDA · FOUNDATIONONE · FRUZAQLA · Fabhalta · Folotyn · GATTEX · GAZYVA · GILOTRIF · GIVLAARI · HEMADY · HEMLIBRA · IBRANCE · ICLUSIG · IDHIFA · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · Imbruvica · JADENU · JAKAFI · JAYPIRCA · JEMPERLI · JEVTANA · KEYTRUDA · KISQALI · KRAZATI · Kadcyla · Kyprolis · LIBTAYO · LONSURF · LORBRENA · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · Lunsumio · MEKINIST · MONJUVI · MVASI · MYLOTARG · NAVIFY Products · NEXPLANON · NINLARO · Neulasta · Nexavar · Nplate · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OGSIVEO · OJJAARA · ONTRUZANT · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Ogivri · Onivyde · Orserdu · PADCEV · PEMAZYRE · PIQRAY · PLUVICTO · POTELIGEO · PRECISETUMOR · PROMACTA · PROVENGE · Padcev · Phesgo · Pomalyst · Poteligeo · PreciseTumor · QINLOCK · REBLOZYL · RETEVMO · ROLVEDON · RYBREVANT · Reblozyl · Revlimid · Rezlidhia · Rubraca · SANDOSTATIN · SARCLISA · SCEMBLIX · SOMATULINE DEPOT · SPRYCEL · SUTENT · Stivarga · TAGRISSO · TASIGNA · TAZVERIK · TECENTRIQ · TECVAYLI · TIBSOVO · TIVDAK · TUKYSA · Tavalisse · Tecentriq · Tibsovo · Trodelvy · ULTOMIRIS · Udenyca · Ultomiris · VARUBI · VENCLEXTA · VERZENIO · VONJO · VOTRIENT · VYXEOS · Venclexta · Vitrakvi · XALKORI · XGEVA · XOSPATA · XPOVIO · XTANDI · Xermelo · Xospata · Yescarta · ZEJULA · ZEPZELCA · ZYTIGA · Zevalin
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (51%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
84
Per 100K population
18.6
County median income
$99,994
Nearest hospital
KAISER FOUNDATION HOSPITAL AND REHAB CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Limvarapuss is a mixed practice specialist, with above-average Medicare volume (top 4% in CA), with low-engagement industry engagement in the top 11% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Limvarapuss experienced with iron infusion (feraheme)?
Based on Medicare claims data, Dr. Limvarapuss performed 48,450 iron infusion (feraheme) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Limvarapuss receive payments from pharmaceutical companies?
Yes. Dr. Limvarapuss received a total of $58,644 from 97 companies across 1,429 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Limvarapuss's costs compare to other hematology & oncology specialists in Vallejo?
Dr. Limvarapuss's average Medicare payment per service is $15. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Limvarapuss) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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