HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / TN

MARK W CHANG, MD

CARDIOVASCULAR DISEASE (CARDIOLOGY)

Medical school: COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS

Graduated: 1987

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1174632475

Practice Locations (7)

WELLMONT CARDIOLOGY SERVICES

400 N STATE OF FRANKLIN RD

JOHNSON CITY, TN 376046035

4234316111

WELLMONT CARDIOLOGY SERVICES

2428 KNOB CREEK RD, SUITE 201

JOHNSON CITY, TN 376042396

4232825054

WELLMONT CARDIOLOGY SERVICES

2050 MEADOWVIEW PKWY

KINGSPORT, TN 376607475

4232305000

WELLMONT CARDIOLOGY SERVICES

1901 S SHADY ST, SUITE 1

MOUNTAIN CITY, TN 376832021

4237276674

WELLMONT CARDIOLOGY SERVICES

1990 HOLTON AVE E

BIG STONE GAP, VA 242193350

2765233111

WELLMONT CARDIOLOGY SERVICES

127 HEALTH CARE DR

PENNINGTON GAP, VA 242772853

4232305000

WELLMONT CARDIOLOGY SERVICES

127 HEALTH CARE DR, SUITE 3

PENNINGTON GAP, VA 242772853

2766790252

Source: CMS National Downloadable File, September 2026.

MARK CHANG, MD | HealthCareAtlasUSA