Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Kathryn Caller, PAC

Physician Assistant in Aurora, CO · enumerated 2006.

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

National Provider Identifier

1619937380

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Registry record

Entity type Individual (Type 1)

Name Ms. Kathryn Caller

Credential PAC

Sex Female

Practice address 15101 E Iliff Ave, Ste 140, Aurora, CO, 80014

Phone (303) 996-9601

Fax (303) 369-2605

Enumeration date Mar 25, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1255 (CO) Primary

Other identifiers

Identifier	Type	State	Issuer
1035184	Other	-	NATIONAL COMMISSION ON CE
57105537	Medicaid	CO	-

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 Kathryn Caller?

Kathryn Caller is registered in NPPES with the primary taxonomy of Physician Assistant. 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 2007-07-08.