NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ronald J Clarke, DO

Family Medicine Physician in Niagara Falls, NY · enumerated 2005 · practices at Ronald J Clarke Do.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649256199

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Registry record

Entity type Individual (Type 1)
Name Ronald J Clarke
Credential DO
Sex Male
Practice address Niagara Falls, NY, 14304
Phone (716) 297-1027
Fax (716) 298-4081
Enumeration date Dec 16, 2005
Last updated in NPPES Jun 26, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 155232 (NY) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
00892360 Medicaid NY -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1649256199 active?
Yes, as of the latest NPPES snapshot, NPI 1649256199 is active (record last updated 2012-06-26).
How do I verify Ronald Clarke's NPI record?
Cross-check NPI 1649256199 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-26.