Stanislaw Niznikiewicz, MD
NPI 1679635031 · Obstetrics & Gynecology Physician · Harrison, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanislaw Niznikiewicz, MD is a Obstetrics & Gynecology Physician provider in Harrison, NY (NPI 1679635031).
Provider details
- NPI number
- 1679635031
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 170606 (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
232 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $146 |
| 3d Radiographic Procedure76376 | 37 | $29 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 37 | $138 |
| Complete Ultrasound of Abdomen and Pelvis Artery and Vein Blood Flow93975 | 37 | $309 |
| Dilation and Scraping of Uterus58120 | 21 | $351 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $191 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 38 | 18 |
| Estradiol | 34 | 17 |
| Terconazole | 26 | — |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 23 | 16 |
| Clobetasol Propionate | 19 | — |
| Fluconazole | 17 | 11 |
| Estradiolbrand: Yuvafem | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 across 5 records (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
- 2006-12-14
- Last updated
- 2007-07-09
Frequently asked questions
- What is Stanislaw Niznikiewicz's NPI number?
- Stanislaw Niznikiewicz's National Provider Identifier (NPI) is 1679635031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanislaw Niznikiewicz's specialty?
- Stanislaw Niznikiewicz is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Stanislaw Niznikiewicz located?
- Stanislaw Niznikiewicz's practice location on file with NPPES is 351 Harrison Ave, Harrison, NY 10528-2716.
- What is Stanislaw Niznikiewicz's phone number?
- The practice phone number listed in the NPPES registry for Stanislaw Niznikiewicz is (914) 777-1300.
- Does Stanislaw Niznikiewicz accept Medicare?
- Stanislaw Niznikiewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanislaw Niznikiewicz's NPI active?
- Yes — Stanislaw Niznikiewicz's NPI (1679635031) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.