Marek Niznikiewicz, DDS
Oral and Maxillofacial Surgery (Dentist) · Harrison, NY
Marek Niznikiewicz, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Harrison, New York, and NPI 1578684239, issued on Apr 2, 2007. Check the license (New York 049967, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marek Niznikiewicz
- Credential
- DDS
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 049967 NY
Self-reported in NPPES; status is on the state search - Practice location
- 351 Harrison Ave, Harrison, NY 10528
- Phone
- (516) 297-8390
- Enumerated
- Apr 2, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 665 in New York → Look up another NPI →
Also registered at 351 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stanislaw Niznikiewicz, MDObstetrics & Gynecology Physician1679635031
Verify Marek Niznikiewicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 049967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
652 Medicare Part D claims for 293 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Azithromycin258 claims
- Ibuprofen206 claims
- Amoxicillin70 claims
- Chlorhexidine Gluconate68 claims
- Clindamycin Hcl18 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.
Marek Niznikiewicz among 665 oral and maxillofacial surgery (dentist) records in New York
Marek Niznikiewicz, DDS is one of 665 oral and maxillofacial surgery (dentist) records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 37% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 13% of these records are
- Record last updated2007 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in New York
There are 665 oral and maxillofacial surgery (dentist) records in New York.
All 665 in New York → Every provider in Harrison → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- William Bast, D.M.D.Hartsdale, NY 105301063543650
- Benjamin Kur, D.D.S.Hawthorne, NY 105321821189432
- Shahin Ghobadi, D.M.DMamaroneck, NY 105431902011497
- David Petti, D.D.S.Mamaroneck, NY 105431841402096
- Anthony Cuomo, DDSCarmel, NY 105121720012578
- Christopher Cuomo, D.D.S., M.D.Carmel, NY 105121760425904
- Karen Avila, DDSBriarcliff Manor, NY 105101104969575
- David Chung, D.D.S.Briarcliff Manor, NY 105101568525145
Common questions
What is Marek Niznikiewicz, DDS's NPI number?
Marek Niznikiewicz, DDS's National Provider Identifier (NPI) is 1578684239, issued on Apr 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marek Niznikiewicz, DDS located?
The NPPES record lists a practice address at 351 Harrison Ave, Harrison, NY, 10528. Phone: (516) 297-8390. Providers update this record themselves, so call before visiting.
How can I verify Marek Niznikiewicz, DDS's license?
NPPES lists New York license number 049967, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marek Niznikiewicz, DDS prescribe under Medicare Part D?
In 2024, Marek Niznikiewicz, DDS had 652 Medicare Part D claims for 293 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.