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

Andrew Hamilton Warner, DO

Individual provider Internal Medicine Physician · NPI 1275112070

Andrew Hamilton Warner, DO is an Internal Medicine in Parkville, Maryland. Graduated from Marian University College of Osteopathic Medicine in 2021, 5 years ago. Practices with Maryland Medical First PA, a 28-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
5
Trained at
Marian University College of Osteopathic Medicine
Licensed in
MD
In the registry since
2021
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

8901 Clement Ave
Parkville, MD 21234-2603
Phone: (410) 661-4670
Fax: (410) 661-4671
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence H0103152 (MD)

Record details

NPI number1275112070
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 7, 2021
Last updated in NPPESFebruary 5, 2026
Certification dateFebruary 5, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMARIAN UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Maryland Medical First Pa — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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