Benjamin Grebber
Pediatrics Physician · Boston, MA
Benjamin Grebber is a pediatrics physician with a practice address in Boston, Massachusetts, and NPI 1003494246, issued on Mar 30, 2021. Check the license (Massachusetts 1018983, 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
- Benjamin Grebber
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 1018983 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Boston Medical Ctr PL Ste 1, Boston, MA 02118
- Phone
- (617) 638-8000
- Enumerated
- Mar 30, 2021
- Record last updated
- Jan 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20251209003842); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,628 in Massachusetts → Look up another NPI →
Also registered at 1 Boston Medical Ctr PL Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Benjamin Grebber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1018983Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Benjamin Grebber among 2,628 pediatrics physician records in Massachusetts
Benjamin Grebber is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% 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 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileNo · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated2021 · median 2010 among the 319 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
822 pediatrics physician records list a practice address in Boston
They are 822 of the 41,865 NPPES records with a practice address in Boston, and 2,628 pediatrics physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,628 in Massachusetts → Every provider in Boston → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- William Adams, MDBoston, MA 021181255314696
- Howard Bauchner, MDBoston, MA 021181710968599
- Deborah Frank, MDBoston, MA 021181003897885
- Anne Lee, MDBoston, MA 021181922099688
- John Maypole, MDBoston, MA 021181356330476
- Alan Meyers, MDBoston, MA 021181215925391
- Patricia Moffatt, MDBoston, MA 021181760463533
- John Palfrey, MDBoston, MA 021181851372296
Common questions
What is Benjamin Grebber's NPI number?
Benjamin Grebber's National Provider Identifier (NPI) is 1003494246, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Grebber located?
The NPPES record lists a practice address at 1 Boston Medical Ctr PL Ste 1, Boston, MA, 02118. Phone: (617) 638-8000. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Grebber's license?
NPPES lists Massachusetts license number 1018983, 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.