NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ryan Alexander Zengou, M.D.

Neurological Surgery Physician in Tulsa, OK · enumerated 2008.

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

National Provider Identifier

1235395591

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ryan Alexander Zengou
Credential M.D.
Sex Male
Practice address 6475 S Yale Ave Ste 308, Tulsa, OK, 74136
Fax (918) 499-4001
Enumeration date Aug 5, 2008
Last updated in NPPES Apr 15, 2024

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 42346 (OK) Primary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 036142030 (IL) Secondary
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

Where does Ryan Zengou practice?
The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ryan Zengou?
The National Provider Identifier (NPI) for Ryan Zengou is 1235395591, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-15.