NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1154405934 M.D.
Verify on CMS → Iraj Aghdasi, M.D.
Internal Medicine Physician in South Weymouth, Massachusetts.
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
3K
Medicare Part D claims · 128 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Iraj Aghdasi, M.D. filed 2,829 Medicare Part D claims in 2023 as a Internal Medicine Physician in South Weymouth, Massachusetts, prescribing 82% generic.
- 3K
- Part D claims, 2023
- 82%
- generic prescribing
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.
Iraj Aghdasi, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,829 Top 12% higher than 88% 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-eligible specialty (heuristic, not verified)
Iraj Aghdasi, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Iraj Aghdasi, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
2,829 4% vs specialty avg
Specialty distribution in Massachusetts
How Internal Medicine Physician compares to other specialties among Massachusetts 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).
Iraj Aghdasi, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 851 MAIN ST, South Weymouth, MA, 02190, with a listed phone of (781) 331-8584. NPI 1154405934 was issued on 10/25/2006.
Medicare Part D records for calendar year 2023 show 2,829 prescription claims written by this provider, covering 128 Medicare beneficiaries and totaling roughly $248K in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 0.8%.
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 | 1154405934 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/25/2006 |
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Iraj Aghdasi, M.D.. To verify Iraj Aghdasi, M.D.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Iraj Aghdasi, M.D. - brand share 18.0%
Internal Medicine Physician average
18% brand-name claims vs 82% generic, on 2,829 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.
2,829
Total Claims
$248K
Total Drug Cost
128
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,999
- Total Day Supply
- 140,227
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $198K
- Generic Drug Cost
- $49K
- Opioid Claims
- 23 (0.8% rate)
- Antibiotic Claims
- 55
Patient Demographics
- Average Patient Age
- 75.6 years
- Avg HCC Risk Score
- 1.19
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Iraj Aghdasi, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
141 claims
- Atorvastatin Calcium
Atorvastatin Calcium
139 claims
- Levothyroxine Sodium
Levothyroxine Sodium
137 claims
- Hydrochlorothiazide
Hydrochlorothiazide
131 claims
- Amlodipine Besylate
Amlodipine Besylate
93 claims
- Metoprolol Tartrate
Metoprolol Tartrate
92 claims
- Trazodone Hcl
Trazodone Hcl
83 claims
- Eliquis
Eliquis
76 claims
| Drug | Claims |
|---|---|
| Lisinopril | 141 |
| Atorvastatin Calcium | 139 |
| Levothyroxine Sodium | 137 |
| Hydrochlorothiazide | 131 |
| Amlodipine Besylate | 93 |
| Metoprolol Tartrate | 92 |
| Trazodone Hcl | 83 |
| Eliquis Apixaban | 76 |
| Prednisone | 64 |
| Pantoprazole Sodium | 61 |
* 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 Iraj Aghdasi, 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
Iraj Aghdasi, M.D.'s 2,829 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Aghdasi.
Dr. Nawal Aamir
MD
Worcester, MA
Zainab Abbas
Worcester, MA
Dr. Nooshin Abbasi
MD MPH
Newton, MA
Dr. Lauren Abbate
MD
Boston, MA
Dr. Bassima Abdallah
MD
Boston, MA
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 Massachusetts 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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Frequently Asked Questions
What is Iraj Aghdasi, M.D.'s specialty? ▼
Iraj Aghdasi, M.D. specializes in Internal Medicine Physician and practices in South Weymouth, Massachusetts. Credentials: M.D..
How much does Iraj Aghdasi, M.D. prescribe under Medicare Part D? ▼
In 2023, Iraj Aghdasi, M.D. wrote 2,829 Medicare Part D claims totaling $248K in drug costs for 128 beneficiaries.
Where is Iraj Aghdasi, M.D. located? ▼
Iraj Aghdasi, M.D. is located at 851 MAIN ST, South Weymouth, MA, 02190. Phone: (781) 331-8584.
What is Iraj Aghdasi, M.D.'s NPI number? ▼
Iraj Aghdasi, M.D.'s National Provider Identifier (NPI) is 1154405934, issued on 10/25/2006.
Does Iraj Aghdasi, M.D. prescribe more brand-name or generic drugs? ▼
Iraj Aghdasi, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $198K in brand drug costs.
Does Iraj Aghdasi, M.D. prescribe opioids? ▼
Yes, Iraj Aghdasi, M.D. had 23 opioid claims in 2023 with an opioid prescribing rate of 0.8%.
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 Iraj Aghdasi, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Iraj Aghdasi, M.D.'s most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Iraj Aghdasi, M.D. accept Medicare? ▼
Iraj Aghdasi, M.D. appears in CMS Medicare data with 2,829 Part D claims and 128 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Iraj Aghdasi, M.D.'s credentials? ▼
Iraj Aghdasi, M.D.'s NPI is 1154405934 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.