Dr. MARK MCCOLL, M.D. | DPC Provider | DPC Directory
Internal Medicine
About
Dr. Mark B. McColl is an East Tennessee native who grew up in west Knoxville and attended the University of Tennessee, where he felt called to medicine. After earning a Master of Arts in General Theological Studies from Covenant Theological Seminary, he completed his medical degree at the University of Tennessee Health Sciences School College of Medicine. He served on the student honor council and was active in the Christian Medical and Dental Association. Dr. McColl completed a combined Internal Medicine/Pediatrics residency at the University of Kentucky College of Medicine in 2006. In 2012 he began developing a Direct Primary Care (DPC) model, launching Trinity Direct Primary Care in January 2016. In 2019 he founded Pillar Primary Care, PLLC to continue the DPC mission, emphasizing the Four Pillars of Good Health—nutrition, exercise, sleep, and peace—while providing personalized, relationship‑focused care for patients of all ages.
Education
Medical School: University of Tennessee Health Sciences School College of Medicine (2002)
Residency: Internal Medicine/Pediatrics - University of Kentucky College of Medicine (Knoxville)
- Residency Internal Medicine/Pediatrics - University of Kentucky College of Medicine (Knoxville)
- Internship Internal Medicine/Pediatrics - University of Kentucky College of Medicine (Knoxville)
Board Certification & Credentials
Degree: M.D.
Specialty: Internal Medicine
Board Certified: American Board of Internal Medicine and American Board of Pediatrics
Designations: Fellow, American College of Physicians (ACP)
Years in Practice: 20+ years
Licensing
NPI Number: 1659312239 Active
Primary License: Tennessee (TN) - MD0000040833
Professional Memberships
- Direct Primary Care Alliance - Member
- Association of American Physicians and Surgeons - Member
- American College of Physicians - Member
- American Association of Pediatricians - Member
- National Lipid Association - Member
Community Involvement
Dr. McColl enjoys outdoor activities such as hiking, backpacking, kayaking, and camping. He is an active member of Cedar Springs Presbyterian Church and has served in leadership roles with Reformed University Fellowship during college.
DPC Experience
Started DPC: January 2016