Stanislava Portnoy, M.D.
Obstetrics & Gynecology Physician · Wellesley Hills, MA
Stanislava Portnoy, M.D. is an obstetrics & gynecology physician with a practice address in Wellesley Hills, Massachusetts, and NPI 1922098003, issued on Oct 28, 2005. Check the license (Massachusetts 221753, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Stanislava Portnoy
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 221753 MA
Self-reported in NPPES; status is on the state search - Practice location
- 30 Washington St FL 2, Wellesley Hills, MA 02481
- Phone
- (781) 263-9110
- Enumerated
- Oct 28, 2005
- Record last updated
- Apr 9, 2025
- Fax
- (781) 263-9125
- Medicaid ID
- 2085062 MA
- Medicare enrollment
- Enrolled (PECOS I20040930000533); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2000
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Verify Stanislava Portnoy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 221753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
44 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 0% of claims.
Most prescribed
- Valacyclovir11 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.
Industry payments in 2024: $35.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- About Women BY Women A Professional CorporationWellesley, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stanislava Portnoy among 1,127 obstetrics & gynecology physician records in Massachusetts
Stanislava Portnoy, 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
- Graduated2000 · median 2004 among the 715 with a school on file
- Record last updated2025 · 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).
3 obstetrics & gynecology physician records list a practice address in Wellesley Hills
They are 3 of the 199 NPPES records with a practice address in Wellesley Hills, and 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Wellesley Hills → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Sibel Bessim, MDWellesley, MA 024811528165685
- Anne Dixon, MDWellesley, MA 024811205881794
- Martha Ehrmann, M.D.Wellesley Hills, MA 024811639145428
- Maria Fradinho, MDWellesley, MA 024811184850703
- Ruth Fretts, MDWellesley, MA 024811275587719
- Julia Logan, M.D.Wellesley, MA 024811053343590
- Sharon Margulies, M.D.Wellesley, MA 024811144268434
- Emily Mather, CNMWellesley Hills, MA 024811134229552
Common questions
What is Stanislava Portnoy, M.D.'s NPI number?
Stanislava Portnoy, M.D.'s National Provider Identifier (NPI) is 1922098003, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stanislava Portnoy, M.D. located?
The NPPES record lists a practice address at 30 Washington St FL 2, Wellesley Hills, MA, 02481. Phone: (781) 263-9110. Providers update this record themselves, so call before visiting.
How can I verify Stanislava Portnoy, M.D.'s license?
NPPES lists Massachusetts license number 221753, 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 Stanislava Portnoy, M.D. prescribe under Medicare Part D?
In 2024, Stanislava Portnoy, M.D. had 44 Medicare Part D claims for 21 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.