NPPES file of Aug 9, 2026

Jennifer Retsinas, MD

Obstetrics & Gynecology Physician · Cambridge, MA

Jennifer Retsinas, MD is an obstetrics & gynecology physician with a practice address in Cambridge, Massachusetts, and NPI 1639282171, issued on Aug 17, 2006. Check the license (Massachusetts 238498, 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
1639282171
Name
Jennifer Retsinas
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
238498 MA
Self-reported in NPPES; status is on the state search
Practice location
1493 Cambridge St, Cambridge, MA 02139
Phone
(617) 665-1000
Enumerated
Aug 17, 2006
Record last updated
Feb 7, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid IDs
0139041 MA
MD4824 AK
Medicare enrollment
Enrolled (PECOS I20240724003996); accepts Medicare assignment
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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Also registered at 1493 Cambridge St

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

  1. Omar Abbas, MDStudent in an Organized Health Care Education/Training Program1225728025
  2. Nawyaab Abbasi, DOStudent in an Organized Health Care Education/Training Program1215875364
  3. Flannery AbbeySocial Worker1508604273
  4. Rana AbdallahSocial Worker1689220204
  5. Khaleel Abdul-Jabbaar, PT, DPTOrthopedic Physical Therapist1780295717
  6. Adri Abou-Bakr, MDStudent in an Organized Health Care Education/Training Program1770421844

Verify Jennifer Retsinas 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 238498
    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. Commonwealth Healthcare CorporationSaipan, MP

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

Jennifer Retsinas among 1,127 obstetrics & gynecology physician records in Massachusetts

Jennifer Retsinas, 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 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 50% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1996 · median 2004 among the 715 with a school on file
  • Record last updated2012 · 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Robert Berry, M.D.Cambridge, MA 021391548241672
  2. Anita Chanana, MDCambridge, MA 021391932669769
  3. Ana Domingues, M.D.Cambridge, MA 021391356490908
  4. Melissa Ethier, M.D.Cambridge, MA 021391255396727
  5. Kathleen Forest Harney, M.D.Cambridge, MA 021391003926411
  6. Latoya Jackson, M.D.Cambridge, MA 021391023301066
  7. Annie Liau, MDCambridge, MA 021391366423717
  8. Tara Singh, M.D.Cambridge, MA 021391629206347

Common questions

What is Jennifer Retsinas, MD's NPI number?

Jennifer Retsinas, MD's National Provider Identifier (NPI) is 1639282171, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Retsinas, MD located?

The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-1000. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Retsinas, MD's license?

NPPES lists Massachusetts license number 238498, 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.