NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1346474517 M.D.
Verify on CMS → Jahan Aghalar, M.D.
Internal Medicine Physician in Commack, 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 172,858 in Internal Medicine 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
2K
Medicare Part D claims · 272 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$21.3K
19 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jahan Aghalar, M.D. filed 1,893 Medicare Part D claims in 2023 as a Internal Medicine Physician in Commack, New York.
- 2K
- Part D claims, 2023
- 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.
Jahan Aghalar, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,893 Top 17% higher than 83% 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)
Jahan Aghalar, M.D. 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 Jahan Aghalar, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
1,893 30% vs specialty avg
Specialty distribution in New York
How Internal Medicine 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 Internal Medicine 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).
Jahan Aghalar, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 650 COMMACK RD, Commack, NY, 11725, with a listed phone of (631) 623-4000. NPI 1346474517 was issued on 05/04/2009.
Medicare Part D records for calendar year 2023 show 1,893 prescription claims written by this provider, covering 272 Medicare beneficiaries and totaling roughly $6.6 million in drug spend, with an opioid prescribing rate of 1.9%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1346474517 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/04/2009 |
Hospital and facility affiliations
Facilities where Jahan Aghalar, M.D. 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.
North Shore Hematology Oncology Associates PC
Bayside, 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 Jahan Aghalar, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$21.3K
Largest payer
Bayer Healthcare Pharmaceuticals Inc.
Most common payment type
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
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 Jahan Aghalar, M.D.. To verify Jahan Aghalar, M.D.'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,893
Total Claims
$6.6M
Total Drug Cost
272
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,279
- Total Day Supply
- 62,665
- Generic Drug Cost
- $773K
- Opioid Claims
- 36 (1.9% rate)
- Antibiotic Claims
- 31
Patient Demographics
- Average Patient Age
- 78.2 years
- Avg HCC Risk Score
- 2.11
- Gender Split
- 24% female / 76% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jahan Aghalar, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
206 claims
- Abiraterone Acetate
Abiraterone Acetate
174 claims
- Aranesp
Aranesp
110 claims
- Akynzeo
Akynzeo
102 claims
- Lynparza 68
Lynparza
68 claims
- Nubeqa 64
Nubeqa
64 claims
- Orgovyx 53
Orgovyx
53 claims
- Xtandi 53
Xtandi
53 claims
| Drug | Claims |
|---|---|
| Prednisone | 206 |
| Abiraterone Acetate | 174 |
| Aranesp Darbepoetin Alfa In Polysorbat | 110 |
| Akynzeo Fosnetupitant/Palonosetron | 102 |
| Lynparza Olaparib | 68 |
| Nubeqa Darolutamide | 64 |
| Orgovyx Relugolix | 53 |
| Xtandi Enzalutamide | 53 |
| Xarelto Rivaroxaban | 51 |
| Xgeva Denosumab | 48 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Jahan Aghalar, M.D. fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Jahan Aghalar, M.D.'s 1,893 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Aghalar.
Dr. Deborah Aanonsen
D.O.
Staten Island, NY
Dr. Nivedita Aanur
M.D.
New York, NY
Dr. Jay Aaron
MD
Great Neck, NY
Dr. Justin Aaron
MD
New York, NY
Ahmad Abadi
Poughkeepsie, NY
Compare Internal Medicine 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 Internal Medicine 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Jahan Aghalar, M.D.'s specialty? ▼
Jahan Aghalar, M.D. specializes in Internal Medicine Physician and practices in Commack, New York. Credentials: M.D..
How much does Jahan Aghalar, M.D. prescribe under Medicare Part D? ▼
In 2023, Jahan Aghalar, M.D. wrote 1,893 Medicare Part D claims totaling $6.6M in drug costs for 272 beneficiaries.
Where is Jahan Aghalar, M.D. located? ▼
Jahan Aghalar, M.D. is located at 650 COMMACK RD, Commack, NY, 11725. Phone: (631) 623-4000.
What is Jahan Aghalar, M.D.'s NPI number? ▼
Jahan Aghalar, M.D.'s National Provider Identifier (NPI) is 1346474517, issued on 05/04/2009.
Does Jahan Aghalar, M.D. prescribe opioids? ▼
Yes, Jahan Aghalar, M.D. had 36 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Jahan Aghalar, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jahan Aghalar, M.D.'s most frequently prescribed drugs include Prednisone, Abiraterone Acetate, Aranesp. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jahan Aghalar, M.D. accept Medicare? ▼
Jahan Aghalar, M.D. appears in CMS Medicare data with 1,893 Part D claims and 272 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jahan Aghalar, M.D.'s credentials? ▼
Jahan Aghalar, M.D.'s NPI is 1346474517 with credentials M.D.. 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.