Medicare Enrolled
Dr. Xinyu Nan, M.D.
Hematology & Oncology · Orange, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Nan 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 →
Are you Dr. Nan?
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What this data tells you about Dr. Nan
Dr. Xinyu Nan is a hematology & oncology specialist in Orange, CA, with 11 years of NPI registration. Based on federal Medicare data, Dr. Nan performed 996 Medicare services across 356 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nan received a total of $24,879 from 97 pharmaceutical and/or device companies across 1173 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. Nan 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.
✓ 11 years in practice
▲ Top 50% volume in CA
$24,879 industry payments
Medicare Practice Summary
Medicare Utilization ↗996
Medicare services
Top 50% in CA for hematology & oncology
356
Unique beneficiaries
$105
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~91 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 |
|---|---|---|---|
| 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. |
487 | $105 | $279 |
| 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. |
295 | $99 | $229 |
| New patient office visit, complex (60-74 min) | 72 | $178 | $522 |
| 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. |
37 | $8 | $39 |
| 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. |
36 | $144 | $403 |
| 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. |
26 | $154 | $440 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
24 | $8 | $22 |
| 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. |
19 | $110 | $345 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$24,879
Total received (2019-2024)
Avg $4,147/year across 6 years
Top 18% in CA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
97
Companies
1,173
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
$23,165 (93.1%)
Other
Charitable contributions, space rental, and other categories
$1,714 (6.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$6,990
2023
$5,923
2022
$5,556
2021
$4,503
2020
$1,661
2019
$246
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$1,432
AstraZeneca Pharmaceuticals LP
$354
Merck Sharp & Dohme LLC
$310
Takeda Pharmaceuticals U.S.A., Inc.
$308
PFIZER INC.
$301
Janssen Biotech, Inc.
$284
Celgene Corporation
$284
Daiichi Sankyo Inc.
$239
Alexion Pharmaceuticals, Inc.
$235
ABBVIE INC.
$205
Eisai Inc.
$190
Genentech USA, Inc.
$180
Incyte Corporation
$169
Regeneron Healthcare Solutions, Inc.
$153
Lilly USA, LLC
$153
ARRAY BIOPHARMA INC
$128
SOBI, INC
$113
Exelixis Inc.
$106
Stemline Therapeutics Inc.
$99
Astellas Pharma US Inc
$97
Ipsen Biopharmaceuticals, Inc
$95
E.R. Squibb & Sons, L.L.C.
$93
Gilead Sciences, Inc.
$92
GENZYME CORPORATION
$84
PUMA BIOTECHNOLOGY, INC.
$83
Immunocore Limited
$80
GlaxoSmithKline, LLC.
$79
CSL Behring
$77
Karyopharm Therapeutics Inc.
$71
TAIHO ONCOLOGY, INC.
$71
Bayer Healthcare Pharmaceuticals Inc.
$70
PharmaEssentia USA Corporation
$62
BeiGene USA, Inc.
$57
Boehringer Ingelheim Pharmaceuticals, Inc.
$50
Aveo Pharmaceuticals, Inc.
$50
Agios Pharmaceuticals, Inc.
$46
Deciphera Pharmaceuticals Inc.
$45
JAZZ PHARMACEUTICALS INC.
$41
EMD Serono, Inc.
$41
Secura Bio, Inc.
$34
ADC Therapeutics America, Inc.
$33
Genmab U.S., Inc.
$32
Rigel Pharmaceuticals, Inc.
$30
Tempus AI, Inc
$29
Legend Biotech USA Inc.
$28
Sumitomo Pharma America, Inc.
$26
RECORDATI_RARE_DISEASES_INC.
$25
Kyowa Kirin, Inc.
$24
Coherus Biosciences Inc.
$24
SpringWorks Therapeutics, Inc.
$24
Boston Scientific Corporation
$23
SERVIER PHARMACEUTICALS LLC
$17
Spectrum Pharmaceuticals Inc.
$14
Top 3 companies account for 30.0% of 2024 payments
All-time payments by company (2019-2024) ›
Novartis Pharmaceuticals Corporation
$2,476
AstraZeneca Pharmaceuticals LP
$1,441
Incyte Corporation
$1,235
Celgene Corporation
$1,152
PFIZER INC.
$1,064
Janssen Biotech, Inc.
$921
Merck Sharp & Dohme LLC
$911
Lilly USA, LLC
$768
E.R. Squibb & Sons, L.L.C.
$675
Eisai Inc.
$649
GENZYME CORPORATION
$571
Astellas Pharma US Inc
$553
Seagen Inc.
$483
Genentech USA, Inc.
$481
Takeda Pharmaceuticals U.S.A., Inc.
$475
Daiichi Sankyo Inc.
$461
Gilead Sciences, Inc.
$447
Alexion Pharmaceuticals, Inc.
$429
Exelixis Inc.
$417
Merck Sharp & Dohme Corporation
$410
GlaxoSmithKline, LLC.
$399
Regeneron Healthcare Solutions, Inc.
$399
Amgen Inc.
$396
Karyopharm Therapeutics Inc.
$381
Pharmacyclics LLC, An AbbVie Company
$371
ABBVIE INC.
$341
Boehringer Ingelheim Pharmaceuticals, Inc.
$301
Bayer HealthCare Pharmaceuticals Inc.
$286
NOVARTIS PHARMACEUTICALS CORPORATION
$283
EMD Serono, Inc.
$275
Ipsen Biopharmaceuticals, Inc
$273
BeiGene USA, Inc.
$248
Blueprint Medicines Corporation
$232
ARRAY BIOPHARMA INC
$227
Bayer Healthcare Pharmaceuticals Inc.
$199
Coherus Biosciences Inc.
$193
EISAI INC.
$190
Stemline Therapeutics Inc.
$187
MorphoSys, US Inc.
$181
Taiho Oncology, Inc.
$148
PUMA BIOTECHNOLOGY, INC.
$146
Pharmacyclics LLC, an AbbVie Company
$143
AbbVie Inc.
$140
AVEO Pharmaceuticals, Inc.
$138
SOBI, INC
$136
CSL Behring
$131
Myovant Sciences Inc.
$126
Epizyme, Inc.,
$123
Puma Biotechnology, Inc.
$121
TAIHO ONCOLOGY, INC.
$101
Kite Pharma, Inc.
$98
AMAG Pharmaceuticals, Inc.
$96
PharmaEssentia USA Corporation
$96
GE HealthCare
$95
ADC Therapeutics America, Inc.
$84
Agios Pharmaceuticals, Inc.
$83
Immunocore Limited
$80
Acrotech Biopharma LLC
$73
Deciphera Pharmaceuticals Inc.
$72
Genmab U.S., Inc.
$65
ImmunoGen, Inc.
$64
Rigel Pharmaceuticals, Inc.
$54
Aveo Pharmaceuticals, Inc.
$50
Myriad Genetic Laboratories, Inc.
$50
Janssen Pharmaceuticals, Inc
$49
Sumitomo Pharma America, Inc.
$49
Foundation Medicine, Inc.
$46
Acceleron Pharma, Inc.
$44
Pharmacosmos Therapeutics Inc.
$42
RECORDATI_RARE_DISEASES_INC.
$42
Dova Pharmaceuticals
$41
JAZZ PHARMACEUTICALS INC.
$41
CTI BioPharma Corp.
$40
EUSA Pharma (US) LLC
$39
Servier Pharmaceuticals LLC
$37
Sirtex Medical Inc
$36
Secura Bio, Inc.
$34
Mirati Therapeutics, Inc.
$34
Sobi, Inc
$31
Tempus AI, Inc
$29
Legend Biotech USA Inc.
$28
ACCORD HEALTHCARE, INC.
$28
Dendreon Pharmaceuticals LLC
$25
Kyowa Kirin, Inc.
$24
SpringWorks Therapeutics, Inc.
$24
Genentech, Inc.
$24
Boston Scientific Corporation
$23
Clovis Oncology, Inc.
$22
Apellis Pharmaceuticals, Inc.
$22
G1 Therapeutics, Inc.
$20
TG Therapeutics, Inc.
$19
Cumberland Pharmaceuticals, Inc.
$18
Novocure Inc.
$18
SERVIER PHARMACEUTICALS LLC
$17
Spectrum Pharmaceuticals Inc.
$14
Aurobindo Pharma USA, Inc.
$13
Acrotech Biopharma Inc.
$13
Top 3 companies account for 20.7% of all-time payments
Associated products mentioned in payments ›
ABECMA · ADCETRIS · ALUNBRIG · AYVAKIT · Afstyla · Alecensa · BAVENCIO · BELEODAQ · BESREMI · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Bavencio · Beleodaq · Blincyto · CABLIVI · CABOMETYX · CALQUENCE · CAMCEVI · CARVYKTI · COPIKTRA · COSELA · CREON · CYRAMZA · Cabometyx · Columvi · DARZALEX · DOPTELET · Doptelet · ELAHERE · ELIQUIS · ELITEK · ELZONRIS · ENHERTU · ENJAYMO · EPKINLY · ERBITUX · ERLEADA · Elahere · Empaveli · Enhertu · Epkinly · FERAHEME · FOLOTYN · FOTIVDA · FRUZAQLA · Fabhalta · GAMIFANT · GAVRETO · GAZYVA · GILOTRIF · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · INQOVI · INREBIC · Idelvion · Imbruvica · Itovebi · JAKAFI · JEVTANA · KEYTRUDA · KIMMTRAK · KISQALI · KRAZATI · Kadcyla · Kyprolis · LIBTAYO · LONSURF · LORBRENA · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · MEKINIST · MONJUVI · MONOFERRIC · MYCHOICE CDX · NERLYNX · NINLARO · Nplate · Nubeqa · OGSIVEO · OJJAARA · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Oncology · Onivyde · Orserdu · PADCEV · PEMAZYRE · PLUVICTO · PROMACTA · PROVENGE · PYRUKYND · Padcev · Phesgo · Polivy · Pomalyst · Poteligeo · QINLOCK · REBLOZYL · RECOTHROM · RETEVMO · ROLVEDON · RYBREVANT · Reblozyl · Revlimid · Rezlidhia · Rubraca · SANCUSO · SARCLISA · SCEMBLIX · SHINGRIX · SIR-Spheres Microspheres · SOMATULINE DEPOT · SYLVANT · SYNAGIS · Somatuline Depot · Stivarga · Sylvant · TABRECTA · TAGRISSO · TALVEY · TASIGNA · TAZVERIK · TECENTRIQ · TECVAYLI · TIBSOVO · TIVDAK · TUKYSA · Tavalisse · Tecentriq · TheraSphere Y90 Glass Microspheres 7.0 GBq (US Commercial) · Tibsovo · Trodelvy · UKONIQ · ULTOMIRIS · Udenyca · Ultomiris · VENCLEXTA · VERZENIO · VONJO · Vanflyta · Vitrakvi · Vonjo · XALKORI · XARELTO · XGEVA · XPOVIO · XTANDI · Xofigo · Xospata · Xtandi · Yescarta · ZEJULA · ZEPZELCA
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 (93%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
243
Per 100K population
7.7
County median income
$113,702
Nearest hospital
PROVIDENCE ST. JOSEPH HOSPITAL
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. Nan is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 18% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Nan experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Nan performed 487 office visit, established patient (30-39 min) 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. Nan receive payments from pharmaceutical companies?
Yes. Dr. Nan received a total of $24,879 from 97 companies across 1,173 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. Nan's costs compare to other hematology & oncology specialists in Orange?
Dr. Nan's average Medicare payment per service is $105. 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. Nan) 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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