NPPES file of Aug 9, 2026

Melissa M. Ethier, M.D.

Obstetrics & Gynecology Physician · Cambridge, MA

Melissa M. Ethier, M.D. is an obstetrics & gynecology physician with a practice address in Cambridge, Massachusetts, and NPI 1255396727, issued on Apr 19, 2006. Check the license (Massachusetts 256992, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255396727
Name
Melissa M. Ethier
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
256992 MA
9244 NH
Self-reported in NPPES; status is on the state search
Practice location
1493 Cambridge St, Cambridge, MA 02139
Phone
(617) 498-1660
Enumerated
Apr 19, 2006
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140408000069); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 1990
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 Melissa M. Ethier 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 256992
    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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50% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

83 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Melissa Ethier83
  2. Specialty average165

Most prescribed

  1. Duavee11 claims
  2. Estradiol11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.8
  2. Costout of 100 · 30%58.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Cambridge Public Health CommissionEverett, MA

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

Melissa M. Ethier among 1,127 obstetrics & gynecology physician records in Massachusetts

Melissa M. Ethier, M.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 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
  • Graduated1990 · median 2004 among the 715 with a school on file
  • Record last updated2018 · 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. Kathleen Forest Harney, M.D.Cambridge, MA 021391003926411
  5. Latoya Jackson, M.D.Cambridge, MA 021391023301066
  6. Annie Liau, MDCambridge, MA 021391366423717
  7. Jennifer Retsinas, MDCambridge, MA 021391639282171
  8. Tara Singh, M.D.Cambridge, MA 021391629206347

Common questions

What is Melissa M. Ethier, M.D.'s NPI number?

Melissa M. Ethier, M.D.'s National Provider Identifier (NPI) is 1255396727, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Melissa M. Ethier, M.D. located?

The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 498-1660. Providers update this record themselves, so call before visiting.

How can I verify Melissa M. Ethier, M.D.'s license?

NPPES lists Massachusetts license number 256992, 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.

How much does Melissa M. Ethier, M.D. prescribe under Medicare Part D?

In 2024, Melissa M. Ethier, M.D. had 83 Medicare Part D claims for 21 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Melissa M. Ethier, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.