Stephen Mark Renzin, MD
Gynecology Physician · Larchmont, NY
Stephen Mark Renzin, MD is a gynecology physician with a practice address in Larchmont, New York, and NPI 1316029671, issued on Oct 19, 2006. Check the license (New York 117223, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Stephen Mark Renzin
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- 117223 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Madison Ave, Larchmont, NY 10538
- Phone
- (914) 833-1000
- Enumerated
- Oct 19, 2006
- Record last updated
- Jul 24, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (914) 833-4226
- Medicare enrollment
- Enrolled (PECOS I20051212000443); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1972
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 362 in New York → Look up another NPI →
Also registered at 1 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Aronin, DDSPediatric Dentistry1740980036
Verify Stephen Mark Renzin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 117223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average gynecology physician in 2024
689 Medicare Part D claims for 173 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Fluconazole144 claims
- Estradiol141 claims
- Metronidazole99 claims
- Raloxifene Hcl56 claims
- Premarin52 claims
- Clobetasol Propionate37 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: $23.82
1 payment: food and beverage; the largest payer was Abbvie Inc. The 1,398 providers of this specialty with any payment received $2,469.88 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.
Stephen Mark Renzin among 362 gynecology physician records in New York
Stephen Mark Renzin, MD is one of 362 gynecology physician records with a practice address in New York. 62% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 32% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated1972 · median 1996 among the 151 with a school on file
- Record last updated2017 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in New York
There are 362 gynecology physician records in New York.
All 362 in New York → Every provider in Larchmont → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Stephanie Klein, MDLarchmont, NY 105381356432132
- Joel Ullman, MDLarchmont, NY 105381447332721
- Veronica Galaviz, MDHawthorne, NY 105321649705898
- Julia Keltz, MDHawthorne, NY 105321457639395
- Lindsey Lapointe, M.DHawthorne, NY 105321447653530
- Michael Orofino, M.D.Hartsdale, NY 105301619051562
- Christina Veit, MDHartsdale, NY 105301275623555
- Bronwyn Fitz, M.D.Harrison, NY 105281609994268
Common questions
What is Stephen Mark Renzin, MD's NPI number?
Stephen Mark Renzin, MD's National Provider Identifier (NPI) is 1316029671, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Mark Renzin, MD located?
The NPPES record lists a practice address at 1 Madison Ave, Larchmont, NY, 10538. Phone: (914) 833-1000. Providers update this record themselves, so call before visiting.
How can I verify Stephen Mark Renzin, MD's license?
NPPES lists New York license number 117223, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Mark Renzin, MD prescribe under Medicare Part D?
In 2024, Stephen Mark Renzin, MD had 689 Medicare Part D claims for 173 beneficiaries; the average among gynecology physician prescribers was 299. 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.