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5.0(8 reviews)
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Office Hours

  • Mon:7:00am - 5:00pm
  • Tue:7:00am - 5:00pm
  • Wed:7:00am - 5:00pm
  • Thu:7:00am - 5:00pm
  • Fri:7:00am - 5:00pm

Mark R. Lentz, MD
Internal Medicine Physician - General

Highlights

  • Board Certified

Biography

Mark Lentz, MD, is an internal medicine physician who provides comprehensive care for adults. He’s passionate about supporting his patients’ long-term health and well-being through prevent… Read more ›

Featured Review See More Reviews

Dr. Lentz was very personable and top notch. It was lovely meeting him and he truly is an asset to the Geisinger team.…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
Jefferson Medical College of Thomas Jefferson UnivDoctorateOther1985

InstitutionFocusYear
Residency - Allegheny University Hospitals - Allegheny GeneralOther1988

CertificationCert. BodyYear
Internal medicineInternal MedicineNot Specified

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician

Internal Medicine

Accepts New Patients: No

Payment Options

Payment Details

Reviews

Average Rating: 5.0
Number of Reviews: 8
Most Recent Review: 08/21/2026
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Office & Staff Evaluation 5.0

Ease of Getting an Appointment 5.0
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere 5.0
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation 5.0

Listening Skills 5.0
Clear Explanations 5.0
Trust in Decision Making 5.0
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Verified Patient

“Dr. Lentz was very personable an...”

Dr. Lentz was very personable and top notch. It was lovely meeting him and he truly is an asset to the Geisinger team.

Anonymous 08/21/2026
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Verified Patient

“DR Lentz always answers all my q...”

DR Lentz always answers all my questions and addresses current health care issues but also ties in prevention to keep me healthy as I age.

Anonymous 03/11/2026
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Verified Patient

“Dr. Mark Lentz has my complete c...”

Dr. Mark Lentz has my complete confidence.

Anonymous 02/27/2026
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Verified Patient

“Dr.Lentz is awesome!...”

Dr.Lentz is awesome!

Anonymous 12/31/2025
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Verified Patient

“Dr.Lentz is the BEST!...”

Dr.Lentz is the BEST!

Anonymous 07/26/2026
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Verified Patient

“Excellent physician...”

Excellent physician

Anonymous 03/04/2026
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Verified Patient

“I feel my care is in excellent h...”

I feel my care is in excellent hands.

Anonymous 01/28/2026
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Verified Patient

“I am very impressed with Doctor ...”

I am very impressed with Doctor Mark Lentz.

Anonymous 12/28/2025

Locations

Affiliated Practices

Practice Colleagues

Shriraj Patel, DO   -   Internal Medicine Physician
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My-Trang Dang, DO   -   Internal Medicine Physician
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Thomas Morland, MD   -   Internal Medicine Physician
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Glenda Delgado Robles, MD   -   Internal Medicine Physician
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Greg Burke, MD   -   Internal Medicine Physician
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Bijal Patel, MD   -   Internal Medicine Physician
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Mark R. Lentz, MD has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Mark R. Lentz, MD has not yet specified the insurance plans he accepts.