Individual provider · Type 1 NPI

Cassie Jillian Firestone

Physician Assistant · Frederick, MD

NPI number 1104616853 Active

Practice location

400 W 7th St
Frederick, MD 21701-4506

Call (240) 566-3300 Map

Mailing address

461 Peleton St
Hagerstown, MD 21740-2299

Specialties and licenses

TaxonomyCodeLicense
Physician Assistant Primary 363A00000XC0010547 (MD)

Physician Assistant: A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, orde…

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About NPI 1104616853

Cassie Jillian Firestone's National Provider Identifier is 1104616853, issued on May 7, 2025. The primary taxonomy on file is Physician Assistant (363A00000X), and the practice location is in Frederick, MD. The record was last updated on Jun 24, 2026.