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

Mary Theresa Ann Lewis, MD

Individual provider Otolaryngology Physician · NPI 1023215969

Mary Theresa Ann Lewis, MD is an Otolaryngology in Lancaster, Pennsylvania. Graduated from Uniformed Services Uhs Fe Hebert School of Med in 2007, 19 years ago. Practices with Yampa Valley Medical Center, a 126-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
19
Trained at
Uniformed Services Uhs Fe Hebert School of Med
Licensed in
PA
In the registry since
2007
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

2104 Harrisburg Pike Ste 200
Lancaster, PA 17601-2644
Phone: (717) 544-3626
Fax: (717) 544-3628
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence MD450120 (PA)

Record details

NPI number1023215969
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 2, 2007
Last updated in NPPESApril 24, 2025
Certification dateApril 24, 2025

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIFORMED SERVICES UHS FE HEBERT SCHOOL OF MED
Graduated 2007 (19 years in practice)
Group practice Yampa Valley Medical Center — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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