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About

Summary: - The page describes Susquehanna Health System, a private Hospitals and Health Care company affiliated with UPMC. - It highlights North Central Pennsylvania-focused healthcare services, with the headquarters in Williamsport, PA. - Key details: 8 employees, multiple offices in PA (including Williamsport HQ and Selinsgrove), and a UK address listed in the extract. - For your query (Family Medicine in Lock Haven, PA – Find a UPMC Provider Lock Haven): The provided content does not show a Lock Haven location or a specific Family Medicine provider in Lock Haven. It references UPMC involvement in North Central PA but lacks Lock Haven-specific provider listings. If you are seeking a UPMC Family Medicine provider in Lock Haven: - Consider checking UPMC’s provider directory for Lock Haven or the Williamsport area, or search for “UPMC Lock Haven Family Medicine” on the UPMC site or contact the listed UPMC phone numbers (412-647-8762, 800-533-8762) for assistance.

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Clinic Type

Primary Care

Address

610 High Street, Lock Haven, PA 17745; 1 Outlet Lane, Suite 400, Lock Haven, PA 17745 (McElhattan)

Phone

+18005338762

Email

—

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://providers.upmc.com/specialty/Family%20Medicine/near/Lock%20Haven%2C%20PA?page=1

Services Offered

  • Family Medicine
  • Primary Care

Team

  • Katie L. Thomke, CRNP — CRNP
  • Carrie A. Timko, MD — MD
  • Marcus Daniel Powers, MD — MD
  • Sarah L. McElroy, DO — DO
  • Karinne Elizabeth Santonico, PA-C — PA-C
  • Adriana Maria Polisano, MD — MD
  • Colby Welshans, PA-C — PA-C
  • John Hanna, PA-C — PA-C
  • Chelsea MacNamara, PA-C — PA-C
  • Hailey Marie Schwartzmier, PA-C — PA-C
  • Dawid Gerlach, DO — DO
  • Brian T Michaluk, DO — DO

Insurance & Payment

—

Not specified on page

Languages Spoken

  • English

Social Media

FacebookLinkedinInstagram

Photos

Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 1Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 2Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 3Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 4Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 5Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 6Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 7Family Medicine in Lock Haven, PA - Find a UPMC Provider — Primary Care clinic in Lock Haven, PA — photo 8

What Patients Say

Overall sentiment across review platforms: positive

  • UPMC Provider Profile (Dr. Marcus Powers): 4.7/5 (49 reviews)
  • UPMC Provider Profile (Katie L. Thomke, CRNP): 4.8/5 (17 reviews)
  • UPMC Provider Profile (Dr. Dawid Gerlach): 4.9/5 (8 reviews)
  • UPMC Provider Profile (Dr. Brian T. Michaluk): 4.5/5 (7 reviews)
  • UPMC Provider Profile (Dr. David Xianfei Luo): 4.9/5 (51 reviews)
  • Birdeye (Primary Care at UPMC Outpatient Center): 4.2/5 (11 reviews)

Patients praise

  • providers are attentive and listen to patient concerns
  • thorough and professional approach to medical care
  • efficient emergency and outpatient services
  • clear explanations of treatment plans
  • friendly and helpful support staff

Common complaints

  • reports of missed diagnoses or concerns in the past

"Dr. Powers was excellent. He spent 30 minutes with me discussing my concerns. He does not try to just move patients in and out. He cares and he tries to help you find root causes."

— UPMC Patient Review

"Dr. Gerlach is the best primary doctor I have had in a very long time. He is knowledgeable and prepares well for my visit. He doesn't pressure me for his recommendations, just explains risks and allows me to make my decision."

— UPMC Patient Review

"I would give them no stars if I could. They have a doctor by the name of Sarah mcelroy. My mom is now in the hospital passing away due this awful doctor egnoring how my mom was feeling."

— Birdeye Patient Review

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of July 11, 2026.

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