NPPES file of Aug 9, 2026

Rachel B.c. Psoinos, M.D., PH.D.

Obstetrics & Gynecology Physician · Boston, MA

Rachel B.c. Psoinos, M.D., PH.D. is an obstetrics & gynecology physician with a practice address in Boston, Massachusetts, and NPI 1821485780, issued on Apr 17, 2015. Check the license (Massachusetts 264365, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821485780
Name
Rachel B.c. Psoinos
Credential
M.D., PH.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
264365 MA
042.0014338 VT
Self-reported in NPPES; status is on the state search
Practice location
133 Brookline Ave, Boston, MA 02215
Phone
(617) 421-1191
Enumerated
Apr 17, 2015
Record last updated
Jun 3, 2026
Medicare enrollment
Enrolled (PECOS I20221012000461); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →

Also registered at 133 Brookline Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shari Abramowitz, M.D.Pediatrics Physician1558346593
  2. Maansi AgheraAudiologist1225887292
  3. Nathalie Alexis, PSY.D.Clinical Psychologist1245886993
  4. Marina Alfisher, MDDiagnostic Radiology Physician1417925207
  5. Andrew Allmendinger, DODiagnostic Radiology Physician1972820942
  6. Dana An, LCSWClinical Social Worker1215108238

Verify Rachel B.c. Psoinos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 264365    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Atrius Health IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rachel B.c. Psoinos among 1,127 obstetrics & gynecology physician records in Massachusetts

Rachel B.c. Psoinos, M.D., PH.D. 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 updated2026 · 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

  1. Samuel Bielak, M.D.Boston, MA 022151508950403
  2. Anne Davenas, MDBoston, MA 022151306817044
  3. Dorothy Dowling, MDBoston, MA 022151861447948
  4. Eric Ganz, M.D.Boston, MA 022151346241858
  5. Gladys Gibbs, MDBoston, MA 022151801982970
  6. Rafik Mansour, MDBoston, MA 022151487600136
  7. Ronald Marcus, M.D.Boston, MA 022151497789283
  8. Sandra Mason, M.D.Boston, MA 022151891753273

Common questions

What is Rachel B.c. Psoinos, M.D., PH.D.'s NPI number?

Rachel B.c. Psoinos, M.D., PH.D.'s National Provider Identifier (NPI) is 1821485780, issued on Apr 17, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Rachel B.c. Psoinos, M.D., PH.D. located?

The NPPES record lists a practice address at 133 Brookline Ave, Boston, MA, 02215. Phone: (617) 421-1191. Providers update this record themselves, so call before visiting.

How can I verify Rachel B.c. Psoinos, M.D., PH.D.'s license?

NPPES lists Massachusetts license number 264365, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.