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Dr. Mary F. Callahan, MD

Family Medicine

Dr. Callahan's Overview

Dr. Mary F. Callahan graduated from the Temple University School of Medicine in 1985. She works in Port Matilda, PA and specializes in Family Medicine. Dr. Callahan is affiliated with Geisinger Medical Center and Mount Nittany Medical Center.

Dr. Callahan's Experience

Years in Practice: 30

Dr. Callahan's Specialties

Family Medicine

Dr. Callahan's Education & Training

Medical School: Temple University School of Medicine; Graduated 1985

Dr. Callahan's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Callahan's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • Capital BC Keystone Health Plan Central HMO
  • Capital BC PPO
  • CIGNA Open Access Plus
  • Coventry HealthAmerica PPO
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Dr. Callahan's Office Information & Appointments

Office Locations

Geisinger Medical Group Knapper Clinic
Geisinger-Grays Woods

132 Abigail Ln
Port Matilda, PA 16870
(814) 272-7100


Office Hours and Information

Fax: (814) 272-6530

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:00 AM - 5:30 PM
Tuesday 8:00 AM - 5:30 PM
Wednesday 8:00 AM - 5:30 PM
Thursday 8:00 AM - 5:30 PM
Friday 8:00 AM - 5:00 PM
Saturday 8:00 AM - 5:00 PM
Sunday 8:00 AM - 5:00 PM

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Dr. Callahan's Hospital Affiliations

Office Locations

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