Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane Margarete Darr, PA-C

Q: What is the NPI number for Diane Darr?

The National Provider Identifier (NPI) for Diane Darr is 1619174885, a Type 1 (individual) record in the CMS NPPES registry.

Physician Assistant in Frederick, MD · enumerated 2007.

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

National Provider Identifier

1619174885

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Registry record

Entity type Individual (Type 1)

Name Diane Margarete Darr

Credential PA-C

Sex Female

Practice address Corp Ohs Frederick 490-L Prospect Blvd, 490-L, Frederick, MD, 21701

Phone (240) 566-3001

Fax (240) 566-3003

Enumeration date Jun 29, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License COOO1130 (MD) Primary

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

Where does Diane Darr practice?

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

What is the NPI number for Diane Darr?

The National Provider Identifier (NPI) for Diane Darr is 1619174885, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.