Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Sinclair Connor, M.D.

Neurology Physician in Tulsa, OK · enumerated 2005.

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

National Provider Identifier

1437143534

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Registry record

Entity type Individual (Type 1)

Name Gregory Sinclair Connor

Credential M.D.

Sex Male

Practice address 6585 S Yale Ave, Ste. 620, Tulsa, OK, 74136

Phone (918) 481-4781

Fax (918) 481-4796

Enumeration date Sep 2, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 18269 (OK) Primary

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

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

What is the NPI number for Gregory Connor?

The National Provider Identifier (NPI) for Gregory Connor is 1437143534, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Connor practice?

The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.