Our San Antonio - Stone Oak location has closed. Dr. Petr will now see all patients at U.S. Dermatology Partners San Antonio.

Michael P. Dunnigan, DO, FAAD

Board-Certified Dermatologist
Fellow of the American Academy of Dermatology

Dr. Dunnigan opened his Greenville office in 1995. He has practiced dermatology since 1991. He earned his undergraduate degree at State University of New York at Buffalo. He received his medical degree from Midwestern University.

Dr. Dunnigan is board certified in family practice and dermatology. He has a fellowship in dermatopathology from UT Southwestern Medical Center in Dallas.

When not caring for his patients, Dr. Dunnigan enjoys skiing, scuba diving, hiking, and spending time with his three children. He went into medicine because he found it mentally challenging. “It’s also a way to help people change their lives for the better,” says Dr. Dunnigan.

Clinic Locations

U.S. Dermatology Partners Winnsboro
U.S. Dermatology Partners Winnsboro

719 W. Coke Road (FM 515)
Building 3, Suite 3
Winnsboro, TX 75494

(903) 342-3376

U.S. Dermatology Partners Greenville
U.S. Dermatology Partners Greenville

8506 Wesley Street
Greenville, TX  75402

(903) 454-1824

What Our Patients Say*

“I grew up in Florida, where skin damage seems to be even more common than Texas. It never even occurred to me to see someone other than Dr. Dunnigan for keeping track of and repairing my skin damage. As an engineer, I find him to be very capable and professional.” – Morris B.

“I have used Dr. Dunnigan for years and always found him friendly and, most importantly, competent. He answers my questions, gives me options and makes a recommendation. He also doesn’t keep me waiting! Unusual for a doctor these days. I would recommend him to anyone.” – Clay W.

*Results may vary by individual

Services Offered By Dr. Dunnigan