Physician Directory

New Search
William C. Steffan MD
Practice closed to new patients.

William C. Steffan MD

(949) 643-9111
Primary Specialties
  • Family Medicine
Medical Groups & Affiliations
  • Mission Heritage Medical Group
  • Additional Languages Spoken

Primary Office

27231 La Paz Road, Suite A
Laguna Niguel, CA 92677
(949) 643-9111
(949) 643-8916
M-F: 8:00am-5:00pm
Recommend this Physician Request an Update for this Physician

Physician Bio

William Steffan M.D. is a Board Certified Family Physician. He is a graduate of the University of Santa Clara and the University of California, San Diego Medical School. He completed his residency in Family Medicine at the University of California, Irvine where he was chief resident. Since May 1982, Dr. Steffan has been practicing Family Medicine in Southern Orange County. His special interests include Pediatrics, Internal Medicine, and sports medicine. He enjoys playing tennis, golf, and jogging. He is married, has two sons and lives in Laguna Beach. He is affiliated with Mission Regional Medical Center.

Dr. Steffan appreciates the opportunity to help his patients through difficult times as well as the opportunity to help them prevent disease and promote a healthy lifestyle.


  • Medical School:
    University of California- San Diego- Sch. of Med.
  • Internship:
    University of California- Irvine Medical Center - 1980
  • Residency:
    University of California- Irvine Medical Center


American Board of Family Practice

Areas of Expertise

Sports medicine

Areas of Interest

Board Certified Internal Medicine

Family Medicine

Insurance ID Numbers

Aetna: *896081
Blue Cross: *AFN070
Blue Shield: 00G428300
CIGNA: 5425667007
CIGNA Select: 5425667014
Health Net: 3435050654
Health Net Senior: 5211050654
SCAN: 954-29046
United Healthcare: *0250360023

*Provider ID is the same for both HMO and Medicare Advantage Plans