Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen W Lahr, PMHNP-BC, DNP

Psychiatric/Mental Health Nurse Practitioner in Tucson, AZ · enumerated 2006.

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

National Provider Identifier

1598784530

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Registry record

Entity type Individual (Type 1)

Name Karen W Lahr

Credential PMHNP-BC, DNP

Sex Female

Practice address 502 W 29th St, Tucson, AZ, 85713

Phone (520) 838-5600

Enumeration date Jul 19, 2006

Last updated in NPPES May 13, 2025

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 71003165A (IN) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP8711 (AZ) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

Other identifiers

Identifier	Type	State	Issuer
001853672	Other	WV	MSBCBS
1228898	Other	-	CHA
AP8711	Other	AZ	LICENSE
000000358162	Other	-	ANTHEM BCBS
610661987	Other	-	CORPHEALTH
30610026	Medicaid	KY	-

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

What specialty is Karen Lahr?

Karen Lahr is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. 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 2025-05-13.