Isaac H. Ritter, M.D.
General Practice Physician · New York, NY
Isaac H. Ritter, M.D. is a general practice physician with a practice address in New York, New York, and NPI 1396066551, issued on Jun 22, 2010. Check the license (New York 263455-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Isaac H. Ritter
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 263455-1 NY
119585 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20 5TH Ave. 11C, New York, NY 10011
- Phone
- (310) 529-5467
- Enumerated
- Jun 22, 2010
- Record last updated
- Feb 11, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Verify Isaac H. Ritter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 263455-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
General Practice Physician providers in New York
There are 681 general practice physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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Common questions
What is Isaac H. Ritter, M.D.'s NPI number?
Isaac H. Ritter, M.D.'s National Provider Identifier (NPI) is 1396066551, issued on Jun 22, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Isaac H. Ritter, M.D. located?
The NPPES record lists a practice address at 20 5TH Ave. 11C, New York, NY, 10011. Phone: (310) 529-5467. Providers update this record themselves, so call before visiting.
How can I verify Isaac H. Ritter, M.D.'s license?
NPPES lists New York license number 263455-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.