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Internal Medicine in Glendale, AZ - Find a Doctor | Banner Health logo

Internal Medicine in Glendale, AZ - Find a Doctor | Banner Health

Internal Medicine • Glendale, AZ

★★★★☆3.8/52,552 reviews across 3 platforms

Ratings by platform

  • Banner Health Provider Site (Dr. Bryan Mahoney): 4.9/5.0 (1,013 ratings) (1,013 ratings)
  • Banner Health Provider Site (Dr. Kenneth Petersen): 4.9/5.0 (579 ratings) (579 ratings)
  • Momentary Labs (Banner Thunderbird Medical Center): 2/5 stars (960 patient surveys)

What patients say

Patients praise

  • Highly-rated individual physicians (e.g., Doctors Mahoney and Petersen)
  • Physicians noted for being good listeners and thorough in care
  • Clean facilities

Common complaints

  • Billing and insurance-related issues
  • Difficulty reaching staff via phone
  • Long wait times and appointment scheduling issues
  • Perceived rudeness or unhelpfulness of front desk staff

In patients' words

"Dr. Mahoney is an excellent doctor. He communicates well, listens well, is very thorough, and is very kind."

— Banner Health Provider Patient Review

"Dr. Petersen is the epitome of a PCP should be. He listens. He also referral back within couple of days."

— Banner Health Provider Patient Review

"Appointment time is merely a suggestion - yet if we showed up an hour late we wouldn’t been seen. INSANE wait times"

— LocalityBiz Patient Review (Occupational Health)

"Not bad medical care - but completely incompetent billing group."

— Yelp Review (Banner Health System)

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 10, 2026 — sources: [1][2][3][4][5][6][7][8].

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