3
2 Ratings with 2 written Reviews
Summary
Dr. John Lewison is an internal medicine physician who specializes in hospital medicine, bringing over three decades of clinical expertise to his practice. He earned his medical degree from the University of Maryland School of Medicine and completed his residency training at York Hospital. With 33 years of experience treating patients, Dr. Lewison has developed extensive knowledge in managing complex medical conditions that require hospitalization and comprehensive care.
Dr. Lewison practices at Saint Peters Health Regional Medical Center in Helena, Montana, and maintains affiliations with both Saint Peters Health Regional Medical Center and Barton Memorial Hospital. He focuses on treating patients with chronic obstructive pulmonary disease, diabetes, and heart failure. His clinical work includes performing complete blood count tests, kidney function assessments, and chest imaging studies to help diagnose and monitor patient conditions. Patients have given Dr. Lewison an average …rating of 3.0 on Vitals.
Read More Read less Dr. Lewison practices at Saint Peters Health Regional Medical Center in Helena, Montana, and maintains affiliations with both Saint Peters Health Regional Medical Center and Barton Memorial Hospital. He focuses on treating patients with chronic obstructive pulmonary disease, diabetes, and heart failure. His clinical work includes performing complete blood count tests, kidney function assessments, and chest imaging studies to help diagnose and monitor patient conditions. Patients have given Dr. Lewison an average …rating of 3.0 on Vitals.
Overview based on verified provider data
Quick Facts
- 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
Patients’ Perspective
- Flexible scheduling
Based on patient feedback. Read the reviews
Office Location
Compare with Similar Doctors
 |  | |  |
| Dr. John Frederick Lewison, MD | Dr. Marlys Ruth Drange, MD | Dr. William Louis Tonidandel, MD | Dr. Robert Emerson La Clair, MD |
| Internal Medicine | Endocrinology, Diabetes & Metabolism | Anesthesiology | Nephrology |
| Accepts New Patients | |||
| 33 Years of Experience | 32 Years of Experience | 28 Years of Experience | 31 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish | Speaks English | Speaks English | |
| Helena , MT | Helena , MT | Helena , MT | Helena , MT |
| Med School: University Of Maryland School Of Medicine | Med School: Stanford University School Of Medicine | Med School: Vanderbilt University School Of Medicine | Med School: Rush Medical College Of Rush University Medical Center |
Current Profile | View Profile | View Profile | View Profile |
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
Certifications, License, & Education
33 Years Experience
Dr. John Frederick Lewison holds an expired medical license in the state of Montana.
Medical License
Medical Doctor with an expired medical license in the state of Montana that expired in 2026.
Education & Training
Residency
Completed their residency at York Hospital.
Medical School
Graduated from University Of Maryland School Of Medicine in 1993.
NPI Number
Dr. Lewison's NPI number is 1497795678.
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Frequently Asked Questions
- Which hospitals is Dr. John Lewison affiliated with?
- Dr. John Lewison is affiliated with Barton Memorial Hospital and Saint Peters Health Regional Medical Center.
- Where is Dr. John Lewison's office located?
- Dr. John Lewison's office is located at 2475 E Broadway St, Helena, MT, 59601.
- How can I make an appointment with Dr. John Lewison?
- You can find contact information for Dr. John Lewison here on Vitals.
- Does Dr. John Lewison accept my insurance?
- You can see the insurance plans that Dr. John Lewison accepts on their Vitals profile.
- 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.
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