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

Brent L Williamson, MD

Individual provider Internal Medicine Physician · NPI 1457792392

Brent L Williamson, MD is an Internal Medicine in York, Pennsylvania. Qualified in 2013, 13 years ago. Practices with Mary Washington Healthcare Providers LLC, a 261-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
13
Licensed in
PA
In the registry since
2013
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

1001 S George St
York, PA 17403-3676
Phone: (717) 851-4751
Fax: (717) 851-2826
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD458584 (PA)

Record details

NPI number1457792392
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2013
Last updated in NPPESJuly 20, 2017
Mailing address1001 S George St, York, PA 17403-3676

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Mary Washington Healthcare Providers Llc — 261 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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