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Geisinger
Phone: 800-275-6401
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To schedule an appointment

Physicians call:1.800.332.8901
Patients call:1.800.275.6401


This physician sees patients at the following locations:


Geisinger Gastroenterology and Endoscopy Center - Lewistown
310 Electric Ave Suite 100
Lewistown, PA 17044
Gastroenterology Gray's Woods State College
132 Abigail Lane
Port Matilda, PA 16870
Gastroenterology Lock Haven
955 Bellefonte Ave
Lock Haven, PA 17745
Gastroenterology Moshannon Valley Philipsburg
210 Medical Center Dr
Philipsburg, PA 16866
Lorella Greaser Thomas, CRNP

Practicing Specialties:

  • Nurse Practitioner, Board Certified, 1998
  • Gastroenterology

Medical School:

  • Penn State University - State College, PA 1997

Hospital Affiliations:

  • Geisinger Lewistown Hospital
  • Geisinger Medical Center
  • Mount Nittany Medical Center