Thomas Grindberg, MD
Obstetrics & Gynecology Physician · Northampton, MA
Thomas Grindberg, MD is an obstetrics & gynecology physician with a practice address in Northampton, Massachusetts, and NPI 1932595733, issued on Apr 9, 2015. Check the license (Massachusetts 281799, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Thomas Grindberg
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 281799 MA
334027 NY
Self-reported in NPPES; status is on the state search - Practice location
- 325B King St, Northampton, MA 01060
- Phone
- (413) 586-2496
- Enumerated
- Apr 9, 2015
- Record last updated
- Mar 7, 2025
- Fax
- (413) 923-5557
- Medicare enrollment
- Enrolled (PECOS I20250311001833); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 325B King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Armstrong, M.D.Internal Medicine Physician1881626786
- Maureen Callahan, NPFamily Nurse Practitioner1497633036
- Vilma Carlone, MDEndocrinology, Diabetes & Metabolism Physician1962459339
- Ann Cooper, D.O.Emergency Medicine Physician1265451694
- Kyle Cooper, MDCardiovascular Disease Physician1053313197
- Janet Curley, LICSWClinical Social Worker1376964775
Verify Thomas Grindberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 281799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Grindberg among 1,127 obstetrics & gynecology physician records in Massachusetts
Thomas Grindberg, MD is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 79% of them.
- NPI issued2015 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2004 among the 715 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Massachusetts
There are 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Northampton → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lorraine Bello, MDNorthampton, MA 010601336163187
- Kristin Dardano, MDNorthampton, MA 010601942384359
- Erin Eppsteiner, M.D.Northampton, MA 010601922234517
- Timothy Fisher, M.D.Northampton, MA 010601871563718
- Melanie Greenman, MDNorthampton, MA 010601942461710
- Katherine Hicks, MDNorthampton, MA 010601952360133
- Maura Keene, MDNorthampton, MA 010601730158130
- Kristen Kelly, M.D.Northampton, MA 010601366761363
Common questions
What is Thomas Grindberg, MD's NPI number?
Thomas Grindberg, MD's National Provider Identifier (NPI) is 1932595733, issued on Apr 9, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Grindberg, MD located?
The NPPES record lists a practice address at 325B King St, Northampton, MA, 01060. Phone: (413) 586-2496. Providers update this record themselves, so call before visiting.
How can I verify Thomas Grindberg, MD's license?
NPPES lists Massachusetts license number 281799, 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. Medicare files from data.cms.gov. 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.