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Manistee Internal Medicine - Primary care clinic - Munson Healthcare

Internal MedicineManistee, MI

★★★★★4.8/56 reviews across 2 platforms

Ratings by platform

  • Healthgrades (Dr. Ryan Sullivan): 5.0 out of 5 (6 ratings)
  • Healthgrades (Dr. Charles Vandenberg): 3.7 out of 5

What patients say

Patients praise

  • Physicians are perceived as caring, good listeners, and competent diagnosticians
  • Emphasis on building long-term relationships with patients
  • Availability of patient portal for convenient access to records and messages

Common complaints

  • Difficulties with office support staff and responsiveness
  • Challenges in scheduling appointments or renewing prescriptions
  • Perceived neglect or lack of communication regarding patient care continuity

In patients' words

"An excellent physician. Listens well, good diagnostician. Seems genuinely interested in the patient. His office support staff are not nearly as helpful (actually one is very argumentative)."

Healthgrades review for Dr. Ryan Sullivan

"Too difficult to get an appointment or a prescription renewal telephone service is terrible."

Healthgrades review for Dr. Charles Vandenberg

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7][8].

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