Browse Health
Internist, Endocrinologist (diabetes, hormones)
25 years of experience
Accepting new patients
Video profile
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. James Mack is Good. Dr. Mack has been reviewed by 9 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.4
Promptness 3.7
Courteous Staff 3.6
Accurate Diagnosis 4.1
Bedside Manner 4.3
Spends Time with Me 4.3
Follows Up After Visit 2.6

Specialties & Research

Dr. James Mack, MD is board certified in Endocrinology, Diabetes & Metabolism.

  • He has special expertise in 11 areas:
  • Adrenal Gland Diseases
  • Diabetes
  • Diabetes Complications
  • Diabetes Mellitus
  • Diabetes
  • Infertility
  • Osteoporosis
  • Parathyroid Diseases
  • Pituitary Diseases
  • Thyroid Diseases
  • Women's Health

Education & Awards

Dr. Mack graduated from University of Washington, Seattle. He has 2 awards.

NCQA Diabetes Physician Recognition Program (2013 - 2016)
On-Time Doctor Award (2014)


Dr. Mack has 5 hospital affiliations:

  • St Vincent Healthcare 
  • Deaconess Billings Clinic 

> > > > Dr. James Mack, MD

Similar doctors nearby

Dr. Richard LeBlond

Internal Medicine
40 years experience
Billings, MT

Dr. Laura Szabo

Internal Medicine
16 years experience
Billings, MT

Dr. Robert Pueringer

Internal Medicine
29 years experience
Billings, MT

Dr. Brendan Bellew

Internal Medicine
11 years experience
Billings, MT

Dr. William Purcell

Internal Medicine
16 years experience
Billings, MT

Dr. Roger Halterman

Internal Medicine
45 years experience
Billings, MT
Search All Similar Doctors
Additional Information
Dr. James A Mack MD is a male Internist, has 25 years of experience and practices in Internal Medicine and Endocrinology, Diabetes & Metabolism.
Where does Dr. James A. Mack practice?
Dr. James Mack has 1 office location.
Dr. James Mack practices Internal Medicine and Endocrinology, Diabetes & Metabolism near Billings, MT.
See Billings Internists and Billings Endocrinologists.