NPI registry status
Active
2026 NPPES data Clinical Pathology Physician NPI 1396688024
Verify on CMS → Gandhar Datar
Clinical Pathology Physician in Boston, 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 424 in Clinical Pathology 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.
What the federal data shows
Gandhar Datar is a Clinical Pathology Physician in Boston, Massachusetts, listed in the federal CMS National Provider Identifier registry.
- #262
- Clinical Pathology Physician rank among Massachusetts specialties
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.
Federal trust snapshot
What official records show about Gandhar Datar
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1396688024), first enumerated 04/09/2026.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Gandhar Datar's individual license status. Verify directly with the state medical board.
Source: BORIM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Datar with other Clinical Pathology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Massachusetts
- Dr. Daniel Ditoro, MD, PHD Boston, MA
- Dr. Jeffrey Gagan, M.D./PH.D. Boston, MA
- Dr. Julie Guilmette, M.D Boston, MA
- Dr. Christopher Hergott, MD, PHD Boston, MA
- Dr. Zahra Jalali, MD Boston, MA
- Dr. Richard Kaufman, MD Boston, MA
Other specialties in Boston: Student in an Organized Health Care Education/Training Program (7,373) · Internal Medicine Physician (3,060) · Clinical Social Worker (1,808) · Physician Assistant (1,545)
CMS NPPES provider registry desk
NPI 1396688024 · Clinical Pathology Physician
NPI-10 · ENUM-NEW · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1396688024
- ENUM-NEW 2026
- TAX-TRACE 424
- RX-NONE No Part D
- BOOK-THIN 23 in Massachusetts
- PHOTO-ENUM Peter Lyon, MD, PHD · 2026
◑
Board-eligible specialty (heuristic, not verified)
Gandhar Datar 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 Gandhar Datar?
Quality data not reportedPrimary specialty
Clinical Pathology Physician
Specialty distribution in Massachusetts
How Clinical Pathology 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 Clinical Pathology 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).
Practice Address
Provider Details
| NPI | 1396688024 |
|---|---|
| Specialty | Clinical Pathology Physician |
| Gender | Male |
| NPI Issued | 04/09/2026 |
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 Gandhar Datar. To verify Gandhar Datar'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.
Clinical Pathology Physician Overview
How Gandhar Datar fits within the Clinical Pathology Physician landscape nationally.
424
Clinical Pathology Physician Providers in US
51
States with Clinical Pathology Physician
259
Avg Claims per Provider
Nationwide Clinical Pathology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Datar, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2026)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Pathology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Datar.
One of 23 Clinical Pathology Physician providers enrolled in Massachusetts, 11 are shown on this page.
Lei Li
Burlington, MA
Li Liu
Boston, MA
Dr. Vinay Mahajan
M.B.B.S, PH.D.
Boston, MA
Dr. Grace Mahowald
MD, PHD
Boston, MA
Arek Melkonian
Boston, MA
Compare Clinical Pathology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Gandhar Datar's specialty? ▼
Gandhar Datar specializes in Clinical Pathology Physician and practices in Boston, Massachusetts.
Where is Gandhar Datar located? ▼
Gandhar Datar is located at 55 FRUIT ST, Boston, MA, 02114. Phone: (617) 726-5440.
What is Gandhar Datar's NPI number? ▼
Gandhar Datar's National Provider Identifier (NPI) is 1396688024, issued on 04/09/2026.
How many Clinical Pathology Physician providers are there in the US? ▼
There are 424 Clinical Pathology Physician providers across 51 states in the US. The average Clinical Pathology Physician provider writes 259 Medicare Part D claims per year.
Does Gandhar Datar accept Medicare? ▼
Gandhar Datar appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gandhar Datar's credentials? ▼
Gandhar Datar's NPI is 1396688024. 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.
- 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 August 2026 (NPPES) / 2024 (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
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 August 2026.