Eric Michael Ganz, M.D.
Obstetrics & Gynecology Physician · Boston, MA
Eric Michael Ganz, M.D. is an obstetrics & gynecology physician with a practice address in Boston, Massachusetts, and NPI 1346241858, issued on Aug 9, 2005. Check the license (Massachusetts 290179, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Eric Michael Ganz
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 290179 MA
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Avenue, Boston, MA 02215
- Phone
- (617) 667-4600
- Enumerated
- Aug 9, 2005
- Record last updated
- Mar 2, 2026
- Medicare enrollment
- Enrolled (PECOS I20220112001817); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- 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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- Sai Preethi Athota, MBBS, M.DStudent in an Organized Health Care Education/Training Program1811788698
Verify Eric Michael Ganz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 290179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
78 Medicare Part D claims for 26 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Estradiol15 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 one group practice
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Michael Ganz among 1,127 obstetrics & gynecology physician records in Massachusetts
Eric Michael Ganz, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1992 · 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
- Samuel Bielak, M.D.Boston, MA 022151508950403
- Anne Davenas, MDBoston, MA 022151306817044
- Dorothy Dowling, MDBoston, MA 022151861447948
- Gladys Gibbs, MDBoston, MA 022151801982970
- Rafik Mansour, MDBoston, MA 022151487600136
- Ronald Marcus, M.D.Boston, MA 022151497789283
- Sandra Mason, M.D.Boston, MA 022151891753273
- Maureen Paul, M.D.Boston, MA 022151003822818
Common questions
What is Eric Michael Ganz, M.D.'s NPI number?
Eric Michael Ganz, M.D.'s National Provider Identifier (NPI) is 1346241858, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eric Michael Ganz, M.D. located?
The NPPES record lists a practice address at 330 Brookline Avenue, Boston, MA, 02215. Phone: (617) 667-4600. Providers update this record themselves, so call before visiting.
How can I verify Eric Michael Ganz, M.D.'s license?
NPPES lists Massachusetts license number 290179, 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 Eric Michael Ganz, M.D. prescribe under Medicare Part D?
In 2024, Eric Michael Ganz, M.D. had 78 Medicare Part D claims for 26 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.
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.