Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John B Chace, MD

Surgery Physician in Norman, OK · enumerated 2006.

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

National Provider Identifier

1043308059

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Registry record

Entity type Individual (Type 1)

Name Mr. John B Chace

Credential MD

Sex Male

Practice address 500 E Robinson, Ste 2300, Norman, OK, 73071

Phone (405) 329-4102

Fax (405) 307-5626

Enumeration date Oct 11, 2006

Last updated in NPPES Feb 22, 2016

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 24274 (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
200060960A	Medicaid	OK	-
P00397767	Other	OK	MEDICARE RAILROAD
200060960B	Medicaid	OK	-

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is John Chace?

John Chace is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-22.