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 medical expertise to patient care. 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 in medicine, Dr. Lewison has developed comprehensive skills in managing complex medical conditions for hospitalized patients.
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. His clinical expertise includes treating diabetes, particularly Type 2 diabetes in both adults and pediatric patients. He also focuses on managing hypertension and other conditions commonly seen in hospital settings. Patients have given him an average rating of 3.0 on Vitals.
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. His clinical expertise includes treating diabetes, particularly Type 2 diabetes in both adults and pediatric patients. He also focuses on managing hypertension and other conditions commonly seen in hospital settings. Patients have given him 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 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. Adewumi Bakare DMSc, PA-C | Dr. Horng-Chyi Richard Lai, MD | Dr. Bennie Joseph Rossetto, MD |
| Internal Medicine | Internal Medicine | Rheumatology | Internal Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 33 Years of Experience | 5 Years of Experience | 19 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | Speaks English, Spanish | Speaks English | |
| Helena , MT | Mesquite , TX | Helena , MT | Fort Harrison , MT |
| Med School: University Of Maryland School Of Medicine | Med School: University of Lynchburg - DMSc | Med School: American University Of Integrative Sciences St Maartin Sch Of Med | |
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
- 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.
- 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.
- Where is Dr. John Lewison's office located?
- Dr. John Lewison's office is located at 2475 E Broadway St, Helena, MT, 59601.
- 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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