NPPES file of Aug 9, 2026

Erin Elizabeth Eppsteiner, M.D.

Obstetrics & Gynecology Physician · Northampton, MA

Erin Elizabeth Eppsteiner, M.D. is an obstetrics & gynecology physician with a practice address in Northampton, Massachusetts, and NPI 1922234517, issued on Jun 9, 2009. Check the license (Massachusetts 266767, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922234517
Name
Erin Elizabeth Eppsteiner
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
266767 MA
Self-reported in NPPES; status is on the state search
Practice location
30 Locust St, Northampton, MA 01060
Phone
(413) 586-9866
Enumerated
Jun 9, 2009
Record last updated
Nov 1, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(413) 923-9306
Medicare enrollment
Enrolled (PECOS I20161007001691); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 2009
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 30 Locust St

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

  1. Timothy Abbott, D.O.Anesthesiology Physician1316155294
  2. Olyn Andrade, MDEmergency Medicine Physician1265008544
  3. Nasreen Azam, M.D.Pediatric Nephrology Physician1649362476
  4. Mae Beckford-Bruno, RNStudent in an Organized Health Care Education/Training Program1043134661
  5. Linda Benoit, LICSWClinical Social Worker1588729610
  6. Charles Bernstein, MDDiagnostic Radiology Physician1699734442

Verify Erin Elizabeth Eppsteiner 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 266767    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

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3.6 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

591 Medicare Part D claims for 228 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Erin Eppsteiner591
  2. Specialty average165

Most prescribed

  1. Estradiol85 claims
  2. Triamcinolone Acetonide69 claims
  3. Nystatin41 claims
  4. Nystatin-Triamcinolone41 claims
  5. Medroxyprogesterone Acetate29 claims
  6. Valacyclovir28 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.

Bills Medicare through 2 group practices

  1. Baystate Ob/gyn Group IncSpringfield, MA
  2. Riverbend Medical Group IncChicopee, MA

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

Erin Elizabeth Eppsteiner among 1,127 obstetrics & gynecology physician records in Massachusetts

Erin Elizabeth Eppsteiner, 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 2009, is newer than 64% of them.

  • NPI issued2009 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2009 · median 2004 among the 715 with a school on file
  • Record last updated2016 · 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

  1. Lorraine Bello, MDNorthampton, MA 010601336163187
  2. Kristin Dardano, MDNorthampton, MA 010601942384359
  3. Timothy Fisher, M.D.Northampton, MA 010601871563718
  4. Melanie Greenman, MDNorthampton, MA 010601942461710
  5. Katherine Hicks, MDNorthampton, MA 010601952360133
  6. Maura Keene, MDNorthampton, MA 010601730158130
  7. Kristen Kelly, M.D.Northampton, MA 010601366761363
  8. Tucker Kueny, MDNorthampton, MA 010601265448013

Common questions

What is Erin Elizabeth Eppsteiner, M.D.'s NPI number?

Erin Elizabeth Eppsteiner, M.D.'s National Provider Identifier (NPI) is 1922234517, issued on Jun 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Erin Elizabeth Eppsteiner, M.D. located?

The NPPES record lists a practice address at 30 Locust St, Northampton, MA, 01060. Phone: (413) 586-9866. Providers update this record themselves, so call before visiting.

How can I verify Erin Elizabeth Eppsteiner, M.D.'s license?

NPPES lists Massachusetts license number 266767, 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 Erin Elizabeth Eppsteiner, M.D. prescribe under Medicare Part D?

In 2024, Erin Elizabeth Eppsteiner, M.D. had 591 Medicare Part D claims for 228 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

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.