NPI registry status
Active
2026 NPPES data Diagnostic Radiology Physician NPI 1376516708 MD
Verify on CMS → Chieh-Min Fan, MD
Diagnostic Radiology Physician in Brookline, 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 39,551 in Diagnostic Radiology 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
33
Medicare Part D claims · 11 beneficiaries · Diagnostic Radiology Physician avg: 63
Generic prescribing
58%
generic claims · 42% 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
Chieh-Min Fan, MD filed 33 Medicare Part D claims in 2023 as a Diagnostic Radiology Physician in Brookline, Massachusetts, prescribing 58% generic.
- 33
- Part D claims, 2023
- 58%
- 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.
Chieh-Min Fan, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
33 0th percentile higher than 0% 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)
Chieh-Min Fan, 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 Chieh-Min Fan, MD?
Quality data not reportedPrimary specialty
Diagnostic Radiology Physician
Medicare Part D claims
33 48% vs specialty avg
Specialty distribution in Massachusetts
How Diagnostic Radiology 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 Diagnostic Radiology 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).
Chieh-Min Fan, MD appears in the CMS NPPES registry as a Diagnostic Radiology Physician provider holding MD credentials at 111 CYPRESS ST, Brookline, MA, 02445, with a listed phone of (857) 307-0896. NPI 1376516708 was issued on 02/08/2006.
Medicare Part D records for calendar year 2023 show 33 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $9K in drug spend, split 42% brand-name and 58% generic by claim count.
Diagnostic Radiology Physician is a mid-sized specialty nationwide, with 39,551 enrolled providers across 56 states and an average of 63 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 | 1376516708 |
|---|---|
| Specialty | Diagnostic Radiology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/08/2006 |
Hospital and facility affiliations
Facilities where Chieh-Min Fan, 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.
Brigham And Womens Physicians Organization Inc
Boston, MA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Chieh-Min Fan, MD. To verify Chieh-Min Fan, MD'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 · Above average
Chieh-Min Fan, MD - brand share 42.0%
Diagnostic Radiology Physician average
42% brand-name claims vs 58% generic, on 33 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.
33
Total Claims
$9K
Total Drug Cost
11
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 33
- Total Day Supply
- 584
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $505
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 80.5 years
- Avg HCC Risk Score
- 1.06
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Diagnostic Radiology Physician Overview
How Chieh-Min Fan, MD fits within the Diagnostic Radiology Physician landscape nationally.
39,551
Diagnostic Radiology Physician Providers in US
56
States with Diagnostic Radiology Physician
63
Avg Claims per Provider
Chieh-Min Fan, MD's 33 claims are below the specialty average of 63.
Nearby Diagnostic Radiology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Fan.
Aly Abayazeed
Worcester, MA
Dr. Mashya Abbassi
MD
Boston, MA
Dr. Gerald Abbott
MD
Boston, MA
Dr. Shadi Abdar Esfahani
MD, MPH
Boston, MA
Dr. Essmaeel Abdel-Dayem
MD
South Weymouth, MA
Compare Diagnostic Radiology 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 Diagnostic Radiology 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Massachusetts
Frequently Asked Questions
What is Chieh-Min Fan, MD's specialty? ▼
Chieh-Min Fan, MD specializes in Diagnostic Radiology Physician and practices in Brookline, Massachusetts. Credentials: MD.
How much does Chieh-Min Fan, MD prescribe under Medicare Part D? ▼
In 2023, Chieh-Min Fan, MD wrote 33 Medicare Part D claims totaling $9K in drug costs for 11 beneficiaries.
Where is Chieh-Min Fan, MD located? ▼
Chieh-Min Fan, MD is located at 111 CYPRESS ST, Brookline, MA, 02445. Phone: (857) 307-0896.
What is Chieh-Min Fan, MD's NPI number? ▼
Chieh-Min Fan, MD's National Provider Identifier (NPI) is 1376516708, issued on 02/08/2006.
Does Chieh-Min Fan, MD prescribe more brand-name or generic drugs? ▼
Chieh-Min Fan, MD's prescribing is 42% brand-name and 58% generic drugs by claim count, with $9K in brand drug costs.
How many Diagnostic Radiology Physician providers are there in the US? ▼
There are 39,551 Diagnostic Radiology Physician providers across 56 states in the US. The average Diagnostic Radiology Physician provider writes 63 Medicare Part D claims per year.
What drugs does Chieh-Min Fan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Chieh-Min Fan, MD's most frequently prescribed drugs include Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chieh-Min Fan, MD accept Medicare? ▼
Chieh-Min Fan, MD appears in CMS Medicare data with 33 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chieh-Min Fan, MD's credentials? ▼
Chieh-Min Fan, MD's NPI is 1376516708 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.