FREDERICK GASTROENTEROLOGY ASSOCIATES PA
NPI 1962508887
Internal Medicine - Gastroenterology in Frederick, MD

Active since September 16, 2006CLIA 21D0220589 · Certificate of Compliance
7109 GUILFORD DR STE 300, FREDERICK, MD 21704(301) 695-6800(301) 695-6891 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Frederick Gastroenterology Associates Pa NPPES

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

FREDERICK GASTROENTEROLOGY ASSOCIATES PA (NPI 1962508887) is a healthcare organization registered as a gastroenterology in Frederick, Maryland and active in the NPI registry since September 2006. The organization holds a CLIA Certificate of Compliance certificate valid through February 7, 2027 and lists Andrew D. Mowery, Managing Partner, as its authorized official.

NPPES Registry Identity

NPI1962508887
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameFREDERICK GASTROENTEROLOGY ASSOCIATES PA
Location Address7109 GUILFORD DR STE 300Frederick, MD 21704-5266
Mailing Address7109 Guilford Dr Ste 300Frederick, MD 21704-5266 · (301) 695-6800 · Fax (301) 695-6891
Fax(301) 695-6891
Organization SubpartNo
Authorized OfficialAndrew D. MoweryManaging Partner · (301) 695-6800
Enumeration DateSeptember 16, 2006
Last NPPES UpdateJanuary 21, 2026
NPPES CertifiedJanuary 21, 2026
✔ NPI 1962508887 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
7109 GUILFORD DR STE 300, Frederick, MD 21704

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Frederick Gastroenterology Associates Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

14

Medicare enrollment records show 14 clinicians reassign Medicare billing to Frederick Gastroenterology Associates PA, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 12 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Gastroenterology10
Nurse Practitioner3
Pathology1

Clinicians, nearest first (14)

Gastroenterology
NPI 1366766966
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1316998883
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1104084896
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1942734694
7109 GUILFORD DR STE 300
Frederick, MD 21704
(013) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1851552624
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1922087477
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1508869827
7109 GUILFORD DR STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1720898281
7109 GUILFORD DR FREDERICK GASTROENTEROLOGY ASSOCIATES STE 300
Frederick, MD 21704
(301) 695-6800
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1235368994
310 W NINTH ST
Frederick, MD 21701
(301) 695-6800
✔ PECOS✔ Accepts Medicare2.2 mi
Nurse Practitioner
NPI 1487657797
310 W NINTH ST
Frederick, MD 21701
(301) 695-6800
✔ PECOS✔ Accepts Medicare2.2 mi
Gastroenterology
NPI 1336427004
310 W NINTH ST
Frederick, MD 21701
(301) 695-6800
✔ PECOS✔ Accepts Medicare2.3 mi
Gastroenterology
NPI 1669748141
310 W NINTH ST
Frederick, MD 21701
(301) 695-6800
✔ PECOS✔ Accepts Medicare2.3 mi
Pathology
NPI 1427283886
6305 IVY LN SUITE 100
Greenbelt, MD 20770
(844) 522-4263
✔ PECOS✔ Accepts Medicare39 mi
Gastroenterology
NPI 1588952659
106 IRVING ST NW PHYSICIANS OFFICE BUILDING SUITE 205 SOUTH TOWER
Washington, DC 20010
(202) 877-1000
✔ PECOS✔ Accepts Medicare39 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 21D0220589

Frederick Gastroenterology Associates · Frederick, MD
Active · expires Feb 7, 2027
CLIA Number21D0220589
Laboratory TypePhysician Office
Certificate Effective DateFebruary 8, 2025
Certificate Expiration DateFebruary 7, 2027
Laboratory DirectorDr. Thomas A. Huebner
Laboratory Phone(301) 695-6800
Laboratory LocationFrederick Gastroenterology Associates7109 Guilford Drive #300, Frederick, MD 21704
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Frederick Gastroenterology Associates PA's NPI number?

The NPI number for Frederick Gastroenterology Associates PA is 1962508887. It was assigned to this organization in the NPPES registry on September 16, 2006.

Where is Frederick Gastroenterology Associates PA located?

Frederick Gastroenterology Associates PA is located at 7109 Guilford Dr Ste 300, Frederick, MD 21704. The listed phone number is (301) 695-6800.

What is Frederick Gastroenterology Associates PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Frederick Gastroenterology Associates PA enrolled in Medicare?

Yes. Frederick Gastroenterology Associates PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Frederick Gastroenterology Associates PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 14 clinicians in 3 Medicare specialties reassign their Medicare billing to Frederick Gastroenterology Associates PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (10), Nurse Practitioner (3) and Pathology (1). Of these, 8 practice at this address and 12 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Frederick Gastroenterology Associates PA hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 21D0220589) is associated with this NPI, valid through February 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Frederick Gastroenterology Associates PA was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.