Mark P Diehl, DO
2 Patient Reviews
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Office Hours

  • Mon:8:00am - 5:00pm
  • Tue:8:00am - 5:00pm
  • Wed:8:00am - 5:00pm
  • Thu:8:00am - 4:30pm
  • Fri:8:00am - 4:30pm

Mark P Diehl, DO

Internal Medicine Physician - Rheumatology

Biography

Why I chose to pursue a career in healthcare:As a biology major in college, I had not thought about what career to take. Having had a pediatric kidney disease, I had an interest in medicine. After tak… Read more ›

Featured Review See More Reviews

Dr. Diehl was exactly what I wish to have in a doctor. He listened intently, asked great questions, and provided clear explanations to all of his comments. I truly felt that Dr. Diehl cared about me as a patient. This has not been the case with all doctors I've seen.…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
Westminster CollegeBachelors DegreeOther1998
Philadelphia College of Osteopathic MedicineDoctorateOther2002

InstitutionFocusYear
Internship - UPMC Pinnacle Community Osteopathic HospitalRotating2003
Fellowship - Geisinger Medical CenterRheumatology2008
Residency - UPMC Pinnacle Community Osteopathic HospitalInternal Medicine2005

Practice & Hospital Affiliations

  • Hanover Hospital
       Hanover, Pennsylvania - 17331

Photos

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Specialties

Languages Spoken
English, German
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Rheumatology

Years In Practice: 16 (started in 2009)

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5
Number of Reviews: 2
Most Recent Review: 05/30/2025
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Office & Staff Evaluation Not rated

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
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Verified Patient

Dr. Diehl was exactly what I wis...

Dr. Diehl was exactly what I wish to have in a doctor. He listened intently, asked great questions, and provided clear explanations to all of his comments. I truly felt that Dr. Diehl cared about me as a patient. This has not been the case with all doctors I've seen.

Anonymous 05/30/2025
Open full review
Verified Patient

I see Dr. Diehl yearly for overa...

I see Dr. Diehl yearly for overall rheumatology check- up. Always pleasant, discusses overall health issues.

Anonymous 05/25/2025

Locations

Affiliated Practices

Practice Colleagues

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Angela Borger, CRNP, DNP, FNP-C   -   Nurse Practitioner
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Mark P Diehl, DO has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Mark P Diehl, DO has not yet specified the insurance plans he accepts.
     

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