Doctor profile · Federal record

Dr. Stanislaw Niznikiewicz, MD

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Harrison, NY

  • NPI 1679635031
  • Accepts Medicare
  • 57 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
351 Harrison Ave, 351 Harrison Ave
Harrison, NY 105282716
(914) 777-1300
fax (914) 835-0115

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
July 9, 2007
Year of graduation
1969 — 57 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
New York #170606

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679635031. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
76
Distinct HCPCS
1
Medicare allowed
$11,292
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 76 28 $149

In context: peer comparison

Among 1 peers in this city , average services per provider: 76. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$117
Transactions
5
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Sumitomo Pharma America, Inc. 5 $116.59

By nature of payment

Food and Beverage
$117

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
187
Patients
73
Total drug cost
$10,334
Drug Type Claims Patients Total cost
Estradiol Generic 30 15 $4,297
Clotrimazole-Betamethasone (Clotrimazole/Betamethasone Dip) Brand 26 18 $766
Azithromycin Generic 21 0 $92
Yuvafem (Estradiol) Brand 20 0 $2,854
Terconazole Generic 19 14 $616
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 18 15 $839
Fluconazole Generic 17 11 $78
Metronidazole Generic 13 0 $559
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 12 0 $111
Metformin Hcl Generic 11 0 $122

Frequently asked questions

Auto-generated from federal data
What is Dr. Stanislaw Niznikiewicz's medical specialty?
Dr. Stanislaw Niznikiewicz practices Obstetrics & Gynecology Physician in Harrison, NY.
Where does Dr. Stanislaw Niznikiewicz practice?
Dr. Stanislaw Niznikiewicz practices at 351 Harrison Ave, Harrison, NY 105282716. Office phone: 9147771300.
What is Dr. Stanislaw Niznikiewicz's NPI?
Dr. Stanislaw Niznikiewicz's National Provider Identifier (NPI) is 1679635031, issued by NPPES.
Does Dr. Stanislaw Niznikiewicz accept Medicare assignment?
Yes. Dr. Stanislaw Niznikiewicz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stanislaw Niznikiewicz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.