Stephen Renzin, MD
NPI 1316029671 · Gynecology Physician · Larchmont, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Renzin, MD is a Gynecology Physician provider in Larchmont, NY (NPI 1316029671).
Provider details
- NPI number
- 1316029671
- Entity type
- Individual
- Primary specialty
- Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 117223 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
600 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 225 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 204 | $122 |
| Destruction of Cervix Using Freezing57511 | 103 | $167 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $83 |
Typical Medicare-allowed amounts for these services range $83–$167 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluconazole | 144 | 107 |
| Estradiol | 141 | 75 |
| Metronidazole | 99 | 85 |
| Raloxifene Hcl | 56 | 14 |
| Estrogens, Conjugatedbrand: Premarin | 52 | 25 |
| Clobetasol Propionate | 37 | 29 |
| Triamcinolone Acetonide | 18 | 17 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2017-07-24
Frequently asked questions
- What is Stephen Renzin's NPI number?
- Stephen Renzin's National Provider Identifier (NPI) is 1316029671, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Renzin's specialty?
- Stephen Renzin is listed in the NPPES registry with a primary specialty of Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Renzin located?
- Stephen Renzin's practice location on file with NPPES is 1 Madison Ave, Larchmont, NY 10538-1929.
- What is Stephen Renzin's phone number?
- The practice phone number listed in the NPPES registry for Stephen Renzin is (914) 833-1000.
- Does Stephen Renzin accept Medicare?
- Stephen Renzin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Renzin's NPI active?
- Yes — Stephen Renzin's NPI (1316029671) is active in the NPPES registry as of the last update on 2017-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.