Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Deirdre Arnholz, MD

Pediatrics Physician in Denver, CO · enumerated 2006.

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

National Provider Identifier

1780769414

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Deirdre Arnholz

Credential MD

Sex Female

Practice address 10350 E Dakota Ave, Denver, CO, 80247

Phone (303) 338-4545

Enumeration date Oct 25, 2006

Last updated in NPPES Jan 31, 2022

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 34900 (CO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
019835	Other	CO	KAISER COMMERCIAL NUMBER
01349000	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 is the NPI number for Deirdre Arnholz?

The National Provider Identifier (NPI) for Deirdre Arnholz is 1780769414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Deirdre Arnholz practice?

The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-31.