Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Clark Hamilton, M.D.

Pediatrics Physician in Spencer, OK · enumerated 2005.

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

National Provider Identifier

1033193214

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Registry record

Entity type Individual (Type 1)

Name Dr. Clark Hamilton

Credential M.D.

Sex Male

Practice address 12716 Ne 36th St, Spencer, OK, 73084

Phone (405) 769-3301

Fax (405) 769-9685

Enumeration date Dec 1, 2005

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 19916 (OK) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
19916	Other	OK	MEDICAL LICENSE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Clark Hamilton's NPI record?

Cross-check NPI 1033193214 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1033193214 active?

Yes, as of the latest NPPES snapshot, NPI 1033193214 is active (record last updated 2007-07-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.