Marc B. Gainor, D.M.D.
General Practice Dentistry · New York, NY
Marc B. Gainor, D.M.D. is a general practice dentistry with a practice address in New York, New York, and NPI 1134209158, issued on Oct 16, 2006. Check the license (New York 36276, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc B. Gainor
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 36276 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Rockefeller Plz, New York, NY 10020
- Phone
- (212) 246-1333
- Enumerated
- Oct 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 247-6308
- Entity
- Type 1 · individual
Also registered at 1 Rockefeller Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Goldenberg, DDSDentist1063683274
- Neil Karnofsky, DDSPeriodontics1164630869
- Elbert Kim, D.D.S.Endodontics1679886097
- Lisa Kornblau, D.D.S.,M.SGeneral Practice Dentistry1164732905
- Anthony Lambrakos, DDSProsthodontics1083860092
- Gabriela Lee, DDSGeneral Practice Dentistry1013031350
Verify Marc B. Gainor 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 36276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average general practice dentistry in 2024
39 Medicare Part D claims for 22 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin25 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.
1,248 general practice dentistry records list a practice address in New York
They are 1,248 of the 98,468 NPPES records with a practice address in New York, and 7,828 general practice dentistry records in New York.
All 1,248 in New York → All 7,828 in New York → Every provider in New York →
Other general practice dentistry records in New York
- Samantha Aaron, DMDNew York, NY1972733178
- Bruce Aaronson, D.D.S.Oneonta, NY1881670107
- Theodore Aaronson, DDSNew York, NY1679540124
- William Aaronson, DDSFreeport, NY1619071271
- Falka Abaci, MDBrooklyn, NY1639252356
- Laarni Abanto, D.M.D.Bronx, NY1295896413
- Lester Abbamonte, D.D.S.Rochester, NY1679624076
- Timothy Abbamonte, D.D.S.Rochester, NY1780735183
- Gregory Abbott, D.D.S.Getzville, NY1285857912
- Avraham Abboudi, DMDStaten Island, NY1063537421
Common questions
What is Marc B. Gainor, D.M.D.'s NPI number?
Marc B. Gainor, D.M.D.'s National Provider Identifier (NPI) is 1134209158, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc B. Gainor, D.M.D. located?
The NPPES record lists a practice address at 1 Rockefeller Plz, New York, NY, 10020. Phone: (212) 246-1333. Providers update this record themselves, so call before visiting.
How can I verify Marc B. Gainor, D.M.D.'s license?
NPPES lists New York license number 36276, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marc B. Gainor, D.M.D. prescribe under Medicare Part D?
In 2024, Marc B. Gainor, D.M.D. had 39 Medicare Part D claims for 22 beneficiaries; the average among general practice dentistry prescribers was 83. 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.