NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1659907509 MD
Verify on CMS → Neil Chen, MD
Hospitalist Physician in New York, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,938 in Hospitalist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
572
Medicare Part D claims · 76 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
75%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$100
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Neil Chen, MD filed 572 Medicare Part D claims in 2023 as a Hospitalist Physician in New York, New York, prescribing 75% generic.
- 572
- Part D claims, 2023
- 75%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Neil Chen, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
572 Top 34% higher than 66% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Neil Chen, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Neil Chen, MD?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
572 36% vs specialty avg
Specialty distribution in New York
How Hospitalist Physician compares to other specialties among New York providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hospitalist Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Neil Chen, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 1111 AMSTERDAM AVE, New York, NY, 10025, with a listed phone of (212) 523-2900. NPI 1659907509 was issued on 03/22/2020.
Medicare Part D records for calendar year 2023 show 572 prescription claims written by this provider, covering 76 Medicare beneficiaries and totaling roughly $96K in drug spend, split 23% brand-name and 75% generic by claim count.
Hospitalist Physician is a mid-sized specialty nationwide, with 16,938 enrolled providers across 54 states and an average of 888 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1659907509 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/22/2020 |
Hospital and facility affiliations
Facilities where Neil Chen, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Icahn School OF Medicine AT Mount Sinai
New York, NY
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Neil Chen, MD. Source: openpaymentsdata.cms.gov.
Total received
$100
Largest payer
Gilead Sciences, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - New York NYSBPMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Neil Chen, MD. To verify Neil Chen, MD's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Neil Chen, MD - brand share 23.0%
Hospitalist Physician average
23% brand-name claims vs 75% generic, on 572 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
572
Total Claims
$96K
Total Drug Cost
76
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,009
- Total Day Supply
- 29,445
- Brand vs Generic
- 23% brand / 75% generic
- Brand Drug Cost
- $85K
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 2.32
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 13, 65-74: 31, 75-84: 21, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Neil Chen, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
44 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
31 claims
- Eliquis
Eliquis
27 claims
- Nifedipine Er
Nifedipine Er
23 claims
- Lisinopril
Lisinopril
22 claims
- Amlodipine Besylate
Amlodipine Besylate
20 claims
- Omeprazole 16
Omeprazole
16 claims
- Pantoprazole Sodium 12
Pantoprazole Sodium
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 44 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 31 |
| Eliquis Apixaban | 27 |
| Nifedipine Er Nifedipine | 23 |
| Lisinopril | 22 |
| Amlodipine Besylate | 20 |
| Omeprazole | 16 |
| Pantoprazole Sodium | 12 |
| Trazodone Hcl | 12 |
| Hydralazine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Neil Chen, MD fits within the Hospitalist Physician landscape nationally.
16,938
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider
Neil Chen, MD's 572 claims are below the specialty average of 888.
Nearby Hospitalist Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Chen.
Dr. Farrukh Abbas
MD
Rochester, NY
Dr. Hassan Abbas
M.D.
Rochester, NY
Dr. Suhail Abbasi
MD,FACP,FHM,FRCP
Batavia, NY
Fatmaalzahraa Abdelqader
New York, NY
Dr. Abdullah Abdullah
MD
Rochester, NY
Compare Hospitalist Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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How insurance networks affect your costs
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Frequently Asked Questions
What is Neil Chen, MD's specialty? ▼
Neil Chen, MD specializes in Hospitalist Physician and practices in New York, New York. Credentials: MD.
How much does Neil Chen, MD prescribe under Medicare Part D? ▼
In 2023, Neil Chen, MD wrote 572 Medicare Part D claims totaling $96K in drug costs for 76 beneficiaries.
Where is Neil Chen, MD located? ▼
Neil Chen, MD is located at 1111 AMSTERDAM AVE, New York, NY, 10025. Phone: (212) 523-2900.
What is Neil Chen, MD's NPI number? ▼
Neil Chen, MD's National Provider Identifier (NPI) is 1659907509, issued on 03/22/2020.
Does Neil Chen, MD prescribe more brand-name or generic drugs? ▼
Neil Chen, MD's prescribing is 23% brand-name and 75% generic drugs by claim count, with $85K in brand drug costs.
How many Hospitalist Physician providers are there in the US? ▼
There are 16,938 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Neil Chen, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Neil Chen, MD's most frequently prescribed drugs include Atorvastatin Calcium, Albuterol Sulfate Hfa, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Neil Chen, MD accept Medicare? ▼
Neil Chen, MD appears in CMS Medicare data with 572 Part D claims and 76 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Neil Chen, MD's credentials? ▼
Neil Chen, MD's NPI is 1659907509 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.