Summary

Dr. John Lewison is an internal medicine physician who also specializes in hospital medicine. He earned his medical degree from the University of Maryland School of Medicine and completed his residency at York Hospital. With 33 years of experience in practice, Dr. Lewison brings extensive knowledge to patient care.

Dr. Lewison is affiliated with Barton Memorial Hospital and Saint Peters Health Regional Medical Center, where he practices in Helena, Montana. He focuses on treating complex conditions such as COPD with other health complications, Type 2 diabetes, and heart failure. His expertise includes performing comprehensive blood work, kidney function testing, and chest imaging studies. Patients have given Dr. Lewison an average rating of 3.0 on Vitals.

AI-generated from data on this provider profile.

Quick Facts

  • 3
  • 33 years of experience
  • York Hospital
  • 2 written reviews
  • 2 specialties
  • 5 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 1 office location
  • Male

Office Location

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Dr. John Frederick Lewison, MDDr. Sara Jane Hromadka Klinger, DOKristen JasterDr. Marlys Ruth Drange, MD
Internal MedicineCardiovascular DiseaseInternal MedicineEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients
4.7 
33 Years of Experience 32 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish
Helena , MTHelena , MTHelena , MTHelena , MT
Med School: University Of Maryland School Of Medicine Med School: Stanford University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Frederick Lewison

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John Frederick Lewison has the following 2 specialties

Specialty Expertise

Dr. John Frederick Lewison has the following 5 areas of expertise

  • Chest Pain
  • Gastrointestinal Bleeding
  • Hospital Medicine
  • Meningitis
  • Pneumonia

Certifications, License, & Education

33 Years Experience

MEDICAL LICENSE

Medical Doctor, Montana, 2026, Expired

EDUCATION & TRAINING

Residency

York Hospital

Medical School

University Of Maryland School Of MedicineGraduated in 1993

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Frequently Asked Questions

Is Dr. John Lewison accepting new patients?
Dr. John Lewison has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. John Lewison accept my insurance?
You can see the insurance plans that Dr. John Lewison accepts on their Vitals profile.
Where is Dr. John Lewison's office located?
Dr. John Lewison's office is located at 2475 E Broadway St, Helena, MT, 59601.
Does Dr. John Lewison accept virtual/telehealth appointments?
Dr. John Lewison has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. John Lewison affiliated with?
Dr. John Lewison is affiliated with Barton Memorial Hospital and Saint Peters Health Regional Medical Center.

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