Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer Otoka Sumner, PHD

Psychologist in Tulsa, OK · enumerated 2006.

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

National Provider Identifier

1588766422

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Registry record

Entity type Individual (Type 1)

Name Jennifer Otoka Sumner

Credential PHD

Sex Female

Practice address 591 E 36th St N, Tulsa, OK, 74106

Phone (918) 634-7980

Fax (918) 634-7878

Enumeration date Sep 1, 2006

Last updated in NPPES Apr 4, 2017

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
200097140A	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Jennifer Sumner?

Jennifer Sumner is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-04.