Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Johna C Hartnell, PH.D.

Psychologist in Fort Yates, ND · enumerated 2006.

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

National Provider Identifier

1558377796

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Registry record

Entity type Individual (Type 1)

Name Dr. Johna C Hartnell

Credential PH.D.

Sex Female

Practice address 10 North River Road, Phs Indian Health Service, Fort Yates, ND, 58538

Phone (701) 854-3831

Fax (701) 854-3844

Enumeration date Jul 31, 2006

Last updated in NPPES Jul 29, 2015

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1129 (NM) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1116-57 (WI) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 0035 (NM) 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
81613	Medicaid	ND	-
000684106	Other	WI	MEDICARE
HSZI31ZJSB	Other	ND	INDIAN HEALTH SERVICE
39035300	Medicaid	WI	-

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

How do I verify Johna Hartnell's NPI record?

Cross-check NPI 1558377796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558377796 active?

Yes, as of the latest NPPES snapshot, NPI 1558377796 is active (record last updated 2015-07-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-29.