Isaac Schiff, MD
Obstetrics & Gynecology Physician · Boston, MA
Isaac Schiff, MD is an obstetrics & gynecology physician with a practice address in Boston, Massachusetts, and NPI 1821088196, issued on Oct 26, 2005. Check the license (Massachusetts 37193, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Isaac Schiff
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 37193 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-3001
- Enumerated
- Oct 26, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (617) 726-7548
- Medicaid ID
- 2023245 MA
- Medicare enrollment
- Enrolled (PECOS I20050509000507); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Isaac Schiff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 37193Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
182 Medicare Part D claims for 52 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Estradiol49 claims
- Yuvafem25 claims
- Estradiol (Once Weekly)24 claims
- Premarin13 claims
- Estradiol (Twice Weekly)11 claims
- Progesterone11 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
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac Schiff among 1,127 obstetrics & gynecology physician records in Massachusetts
Isaac Schiff, 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 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
- Graduated1968 · 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
- Lisa Baute, MDBoston, MA 021141881684967
- Lori Berkowitz, MDBoston, MA 021141851374276
- Erin Bradley, MD, MPHBoston, MA 021141104817386
- Marcela Delcarmen, MDBoston, MA 021141215927678
- Kristen Eckler, MDBoston, MA 021141851381545
- Lynne Goltra, MDBoston, MA 021141609856038
- Julie Jolin, MDBoston, MA 021141689648115
- Rebecca Kolp, MDBoston, MA 021141104816834
Common questions
What is Isaac Schiff, MD's NPI number?
Isaac Schiff, MD's National Provider Identifier (NPI) is 1821088196, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Isaac Schiff, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-3001. Providers update this record themselves, so call before visiting.
How can I verify Isaac Schiff, MD's license?
NPPES lists Massachusetts license number 37193, 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 Isaac Schiff, MD prescribe under Medicare Part D?
In 2024, Isaac Schiff, MD had 182 Medicare Part D claims for 52 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.