Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Allen J Gilson, MD

Individual provider Internal Medicine Physician · NPI 1346241346

Dr. Allen J Gilson, MD is a Geriatric Medicine in Frederick, Maryland. Graduated from Jefferson Medical College of Thomas Jefferson University in 1979, 47 years ago. Practices with Frederick Health Hospital Inc, a 194-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
47
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
MD
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7115 Guilford Dr Ste #202
Frederick, MD 21704-5199
Phone: (301) 663-5922
Fax: (301) 663-8292
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence D0026516 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence D0026516 (MD)

Record details

NPI number1346241346
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 2, 2005
Last updated in NPPESJuly 25, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1979 (47 years in practice)
Group practice Frederick Health Hospital Inc — 194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Frederick