Katherine Marie Baker, MD
Obstetrics & Gynecology Physician · Boston, MA
Katherine Marie Baker, MD is an obstetrics & gynecology physician with a practice address in Boston, Massachusetts, and NPI 1205326865, issued on May 18, 2018. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Katherine Marie Baker
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD18613 RI
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Avenue, Boston, MA 02215
- Phone
- (617) 667-2285
- Enumerated
- May 18, 2018
- Record last updated
- Jan 26, 2023
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 330 Brookline Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Marie Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $1,308.25
3 payments; by number, the most common kind was travel and lodging; the largest payer was Ferring Pharmaceuticals Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Katherine Marie Baker among 1,127 obstetrics & gynecology physician records in Massachusetts
Katherine Marie Baker, 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 2018, is newer than 87% of them.
- NPI issued2018 · 87% of these records are older, 10% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2023 · 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 Boston → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Samuel Bielak, M.D.Boston, MA 022151508950403
- Anne Davenas, MDBoston, MA 022151306817044
- Dorothy Dowling, MDBoston, MA 022151861447948
- Eric Ganz, M.D.Boston, MA 022151346241858
- Gladys Gibbs, MDBoston, MA 022151801982970
- Rafik Mansour, MDBoston, MA 022151487600136
- Ronald Marcus, M.D.Boston, MA 022151497789283
- Sandra Mason, M.D.Boston, MA 022151891753273
Common questions
What is Katherine Marie Baker, MD's NPI number?
Katherine Marie Baker, MD's National Provider Identifier (NPI) is 1205326865, issued on May 18, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Marie Baker, MD located?
The NPPES record lists a practice address at 330 Brookline Avenue, Boston, MA, 02215. Phone: (617) 667-2285. Providers update this record themselves, so call before visiting.
How can I verify Katherine Marie Baker, MD's license?
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.