Medicare Enrolled
Dr. Vinh-Linh Nguyen, MD
Hematology & Oncology · Bakersfield, 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. Nguyen 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. Nguyen
Dr. Vinh-Linh Nguyen is a hematology & oncology specialist in Bakersfield, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 383,729 Medicare services across 3,300 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $1,915 from 37 pharmaceutical and/or device companies across 71 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. Nguyen 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.
✓ 20 years in practice
▲ Top 1% volume in CA
$1,915 industry payments
Medicare Practice Summary
Medicare Utilization ↗383,729
Medicare services
Top 1% in CA for hematology & oncology
3,300
Unique beneficiaries
$30
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~19,186 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 |
|---|---|---|---|
| Nivolumab injection (Opdivo) | 74,400 | $22 | $42 |
| Pembrolizumab injection (Keytruda) | 50,801 | $43 | $82 |
| Paclitaxel protein-bound particle injection An injection of paclitaxel formulated as protein-bound particles. This code specifies the administration of the medication measured in milligrams. |
48,900 | $10 | $18 |
| Carfilzomib injection, 1 mg This code represents the administration of a 1 mg dose of carfilzomib via injection. |
44,270 | $36 | $69 |
| Daratumumab injection, 10 mg An injection of daratumumab, a monoclonal antibody medication, administered in a 10 mg dose. |
40,920 | $48 | $90 |
| Bevacizumab biosimilar injection, 10 mg An injection of bevacizumab-awwb, a biosimilar medication, administered in a 10 mg dose. |
33,188 | $23 | $46 |
| Rituximab-pvvr biosimilar injection, 10 mg An injection of rituximab-pvvr, a biosimilar medication, administered in a 10 mg dose. |
20,870 | $21 | $45 |
| Anti-nausea injection (ondansetron/Zofran) | 16,086 | $0 | $0 |
| Injection, ipilimumab, 1 mg | 14,300 | $115 | $206 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
6,789 | $0 | $0 |
| 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. |
5,014 | $1 | $1 |
| Denosumab injection (Prolia/Xgeva) | 4,320 | $19 | $38 |
| 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. |
3,777 | $10 | $21 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
2,184 | $107 | $217 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
1,926 | $23 | $46 |
| 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. |
1,772 | $1 | $2 |
| Injection, thiamine hcl, 100 mg | 1,688 | $2 | $4 |
| 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. |
1,534 | $51 | $106 |
| 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. |
1,461 | $24 | $48 |
| 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. |
1,440 | $6 | $11 |
| 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. |
1,203 | $54 | $106 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
1,115 | $16 | $32 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
998 | $2 | $4 |
| Iron dextran injection, 50 mg An injection containing 50 mg of iron dextran administered to the patient. |
956 | $13 | $25 |
| 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. |
580 | $98 | $174 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
566 | $1 | $1 |
| 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. |
477 | $11 | $23 |
| 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. |
384 | $62 | $115 |
| 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. |
333 | $143 | $267 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
324 | $1 | $2 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
284 | $4 | $9 |
| Injection, potassium chloride, per 2 meq | 270 | $0 | $0 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
217 | $1 | $2 |
| 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. |
139 | $2 | $4 |
| New patient office visit, complex (60-74 min) | 63 | $170 | $323 |
| 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. |
60 | $27 | $54 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
49 | $110 | $229 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
45 | $53 | $133 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
26 | $72 | $151 |
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.
3.8% high complexity
94.9% medium
1.4% routine
Industry Payment Transparency
Open Payments through 2024 ↗$1,915
Total received (2018-2024)
Avg $319/year across 6 years
Bottom 43% in CA for hematology & oncology
37
Companies
71
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
$1,605 (83.8%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$310 (16.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$294
2023
$559
2022
$433
2021
$308
2019
$222
2018
$100
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Dendreon Pharmaceuticals LLC
$77
Novartis Pharmaceuticals Corporation
$59
PFIZER INC.
$45
GlaxoSmithKline, LLC.
$27
Exelixis Inc.
$25
Celgene Corporation
$19
Amneal Pharmaceuticals LLC
$16
Eisai Inc.
$14
Gilead Sciences, Inc.
$12
Top 3 companies account for 61.7% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$206
Incyte Corporation
$161
PFIZER INC.
$157
Genentech USA, Inc.
$111
E.R. Squibb & Sons, L.L.C.
$111
Novartis Pharmaceuticals Corporation
$87
Pharmacyclics LLC, An AbbVie Company
$85
Exelixis Inc.
$84
AstraZeneca Pharmaceuticals LP
$79
Dendreon Pharmaceuticals LLC
$77
Janssen Biotech, Inc.
$65
Stemline Therapeutics Inc.
$60
Sun Pharmaceutical Industries Inc.
$58
GlaxoSmithKline, LLC.
$57
Regeneron Healthcare Solutions, Inc.
$56
AbbVie Inc.
$39
Myovant Sciences Inc.
$30
Seagen Inc.
$28
Myriad Genetic Laboratories, Inc.
$26
Genmab U.S., Inc.
$26
TerSera Therapeutics LLC
$25
Merck Sharp & Dohme LLC
$25
GENZYME CORPORATION
$24
Bayer Healthcare Pharmaceuticals Inc.
$24
Daiichi Sankyo Inc.
$23
Kite Pharma, Inc.
$22
TG THERAPEUTICS, INC.
$21
Takeda Pharmaceuticals U.S.A., Inc.
$20
Celgene Corporation
$19
EISAI INC.
$18
Agios Pharmaceuticals, Inc.
$17
Lilly USA, LLC
$16
Amneal Pharmaceuticals LLC
$16
Eisai Inc.
$14
SECURA BIO, INC.
$14
Gilead Sciences, Inc.
$12
Rigel Pharmaceuticals, Inc.
$6
Top 3 companies account for 27.4% of all-time payments
Associated products mentioned in payments ›
AVASTIN · BOSULIF · CABOMETYX · CALQUENCE · COPIKTRA · Cabometyx · ELREXFIO · ERLEADA · Enhertu · Epkinly · IMBRUVICA · INLYTA · KEYTRUDA · Kyprolis · LIBTAYO · LUPRON DEPOT · Lenvima · MEKINIST · MONJUVI · MYRISK · NINLARO · OJJAARA · OPDIVO · ORGOVYX · Orserdu · PROVENGE · PYRUKYND · Perjeta · Phesgo · REBLOZYL · Rezlidhia · SARCLISA · SCEMBLIX · Stivarga · TAGRISSO · TUKYSA · Trodelvy · UKONIQ · VERZENIO · Xermelo · YONSA
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 (84%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
7
Per 100K population
0.8
County median income
$67,660
Nearest hospital
KERN MEDICAL 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. Nguyen is a mixed practice specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement, with 20 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. Nguyen experienced with nivolumab injection (opdivo)?
Based on Medicare claims data, Dr. Nguyen performed 74,400 nivolumab injection (opdivo) 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. Nguyen receive payments from pharmaceutical companies?
Yes. Dr. Nguyen received a total of $1,915 from 37 companies across 71 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. Nguyen's costs compare to other hematology & oncology specialists in Bakersfield?
Dr. Nguyen's average Medicare payment per service is $30. 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. Nguyen) 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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