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Gillian Grannum, PhD

My Locations

Map Marker A WellSpan Philhaven - Ephrata
354 N. Reading Rd.
Ephrata, PA 17522
(717) 738-1125
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Map Marker B WellSpan Philhaven - Oregon Pike
2501 Oregon Pike
Lancaster, PA 17601
(717) 735-1954
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About Me

Education & Credentials

  • Professional Education: Fuller Graduate School of Psychology
  • Professional Education: Fuller Graduate School of Psychology
  • Clinical Training: Philhaven
  • Undergraduate Education: Harvard University

WellSpan Hospital Affiliations

  • WellSpan Ephrata Hospital
  • WellSpan Philhaven - Mt Gretna

Health Plans Accepted

WellSpan Financial Assistance Program participant

  • Aetna
  • Capital BlueCross
  • Cigna Behavioral Health
  • Cigna Healthspring
  • Gateway Highmark Wholecare
  • Geisinger
  • Highmark Blue Shield
  • John Hopkins Health Care
  • Magellan Behavioral Health
  • Optum (United Behavioral Health)
  • PA Health & Wellness (Centene)
  • PA Medical Assistance
  • PA Medicare
  • Preferred Health Care
  • Quest Behavioral Health
  • South Central Preferred
  • Vibra Health Plan

Patient Reviews

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Physician star ratings and patient comments come from after visit survey data that is compiled by Press-Ganey, a leading independent performance measurement company. WellSpan is committed to posting all feedback, whether positive or negative. However, comments may be edited or removed if they are profane or risk the privacy of our patients.



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