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

Dr. Nelson C Onaro, D.O.

Family Medicine Physician in Mcalester, OK · enumerated 2006 · practices at Medical Clinic of Mcalester, LLC.

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

National Provider Identifier

1699783712

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Registry record

Entity type Individual (Type 1)

Name Dr. Nelson C Onaro

Credential D.O.

Sex Male

Practice address Mcalester, OK, 74501

Phone (918) 423-5916

Fax (918) 423-5967

Enumeration date Aug 4, 2006

Last updated in NPPES Jun 12, 2013

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 3437 (OK) 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
DEPT OF LABOR	Other	OK	610872700
100069700C	Medicaid	OK	-
158744003	Medicaid	AR	-

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

How do I verify Nelson Onaro's NPI record?

Cross-check NPI 1699783712 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1699783712 active?

Yes, as of the latest NPPES snapshot, NPI 1699783712 is active (record last updated 2013-06-12).

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Medical Clinic of Mcalester, LLC Family Medicine Physician · Mcalester, OK NPI 1548459266

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-12.