Eric Grewal, MD
Clinical Pathology/Laboratory Medicine Physician · Boston, MA
Eric Grewal, MD is a clinical pathology/laboratory medicine physician with a practice address in Boston, Massachusetts, and NPI 1669121943, issued on Mar 22, 2022. Check the license (Massachusetts 1022102, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Eric Grewal
- Credential
- MD
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- 1022102 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-2000
- Enumerated
- Mar 22, 2022
- Record last updated
- Apr 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20260610004306); may accept Medicare assignment
- Medical or professional school
- Mayo Medical School, 2022
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 52 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
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Verify Eric Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1022102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Eric Grewal among 52 clinical pathology/laboratory medicine physician records in Massachusetts
Eric Grewal, MD is one of 52 clinical pathology/laboratory medicine physician records with a practice address in Massachusetts. 37% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 2% newer
- In a Medicare fileNo · 37% of these records are
- In the CMS Doctors and Clinicians fileYes · 35% of these records are
- Graduated2022 · median 1998 among the 18 with a school on file
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Massachusetts
There are 52 clinical pathology/laboratory medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 52 in Massachusetts → Every provider in Boston → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Uriel Bulow, MDBoston, MA 021141902556087
- John Higgins, M.D.Boston, MA 021141639241409
- Jae Joung, MD PHDBoston, MA 021141386628345
- Erik KlontzBoston, MA 021141417533977
- Mara Lorenzi, MDBoston, MA 021141023099470
- Agata Smogorzewska, MD PHDBoston, MA 021141669664710
- Christopher Stowell, MH PHDBoston, MA 021141316938665
- Stephen Blacklow, M.D.Boston, MA 021151982662805
Common questions
What is Eric Grewal, MD's NPI number?
Eric Grewal, MD's National Provider Identifier (NPI) is 1669121943, issued on Mar 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Eric Grewal, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-2000. Providers update this record themselves, so call before visiting.
How can I verify Eric Grewal, MD's license?
NPPES lists Massachusetts license number 1022102, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.