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5 Patient Reviews
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Office Hours

  • Sun:12:00am - 12:00am
  • Mon:12:00am - 12:00am
  • Tue:12:00am - 12:00am
  • Wed:12:00am - 12:00am
  • Thu:12:00am - 12:00am
  • Fri:12:00am - 12:00am
  • Sat:12:00am - 12:00am

Mark Edward Mahan, DO

Internal Medicine Physician - General, Surgeon - General

Biography

Mark Mahan, DO, is a board-certified general surgeon specializing in bariatric and foregut surgery. He performs advanced and specialized surgical procedures, including gastric bypass, gastric sleeve, … Read more ›

Featured Review See More Reviews

Dr Mahan is an excellent surgeon. Very thorough. I trust doctor wholeheartedly with my surgery and have had a great outcome.…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
New York College Of Osteopathic MedicineDoctorateOther2017

InstitutionFocusYear
Fellowship - Geisinger Medical CenterOther2023

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician
  • Surgeon

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 4.2
Number of Reviews: 5
Most Recent Review: 02/11/2026
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Office & Staff Evaluation

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

Provider Evaluation

Listening Skills
Clear Explanations
Trust in Decision Making
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Verified Patient

“Dr Mahan is an excellent surgeon...”

Dr Mahan is an excellent surgeon. Very thorough. I trust doctor wholeheartedly with my surgery and have had a great outcome.

Anonymous 02/11/2026
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Verified Patient

“The Dr was excellent ,very good ...”

The Dr was excellent ,very good at explaining the surgery process.

Anonymous 12/03/2025
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Verified Patient

“Dr Mahan has been excellent!...”

Dr Mahan has been excellent!

Anonymous 10/22/2025
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Verified Patient

“He showed No Concern No Emotions...”

He showed No Concern No Emotions he didn't care not concern about my health history would not discuss in person with me He also was 35 minutes late to come in the appt I opened the door he was walking by with a cup of coffee in his hand

Anonymous 01/23/2026
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Verified Patient

“Dr. Mahan is great. He listens ...”

Dr. Mahan is great. He listens and cares.

Anonymous 10/29/2025

Locations

Affiliated Practices

Practice Colleagues

Matthew Moore, CRNA   -   Certified Registered Nurse Anesthetist
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Katherine Eckroth, DNP, RXN, PMHNP-BC   -   Nurse Practitioner
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Christopher Heiss, CRNA   -   Certified Registered Nurse Anesthetist
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Mark Edward Mahan, DO has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Mark Edward Mahan, DO has not yet specified the insurance plans he accepts.
     

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