CASSIE JILLIAN FIRESTONE
NPI 1104616853
Physician Assistant in Frederick, MD

Active since May 07, 2025
400 W 7TH ST, FREDERICK, MD 21701(240) 566-3300 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Cassie Jillian Firestone NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CASSIE JILLIAN FIRESTONE (NPI 1104616853) is an individual physician assistant in Frederick, Maryland, licensed in Maryland (C0010547) and active in the NPI registry since May 2025.

NPPES Registry Identity

NPI1104616853
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameCASSIE JILLIAN FIRESTONE
Location Address400 W 7TH STFrederick, MD 21701-4506
Mailing Address461 Peleton StHagerstown, MD 21740-2299 · (443) 253-5045
Sole ProprietorYes
Enumeration DateMay 7, 2025
Last NPPES UpdateJune 24, 2026
NPPES CertifiedJune 24, 2026
NPI 1104616853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in MD · C0010547
Definition

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, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

400 W 7TH ST, Frederick, MD 21701

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pharmacy
400 W 7TH ST
FREDERICK, MD 21701
Internal Medicine
400 W 7TH ST
FREDERICK, MD 21701
Pediatrics
400 W 7TH ST
FREDERICK, MD 21701
Pediatrics (Neonatal-Perinatal Medicine)
400 W 7TH ST, NICU, FREDERICK MEMORIAL HOSPITAL
FREDERICK, MD 21701
Physician Assistant
400 W 7TH ST
FREDERICK, MD 21701
Emergency Medicine
400 W 7TH ST
FREDERICK, MD 21701
Emergency Medicine
400 W 7TH ST
FREDERICK, MD 21701
Emergency Medicine
400 W 7TH ST
FREDERICK, MD 21701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104616853, enumerated as an "individual" on May 07, 2025.

The provider is located at 400 W 7TH ST FREDERICK, MD 21701 and the phone number is (240) 566-3300.

Physician Assistant with taxonomy code 363A00000X.