Browse Health
Obstetrician & Gynecologist (OB/GYN), Oncology Specialist (cancer)
34 years of experience
Video profile
Accepting new patients
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 (13)

The overall average patient rating of Dr. Mark Rettenmaier is Good. Dr. Rettenmaier has been reviewed by 53 patients who have provided 13 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 3.8
Courteous Staff 4.0
Accurate Diagnosis 3.6
Bedside Manner 3.4
Spends Time with Me 3.6
Follows Up After Visit 3.4

Specialties & Research

Dr. Mark Rettenmaier, MD is board certified in Obstetrics & Gynecology and Gynecologic Oncology.

  • He has special expertise in 4 areas:
  • Cancer
  • Gynecology
  • Hot Flashes
  • Menopause

Education & Awards

Dr. Rettenmaier graduated from University of Iowa, Iowa City. He has 3 awards.

Junior Faculty Clinical Fellow
Department of Obstetrics and Gynecology
CalOptima Circle of Life Award


Dr. Rettenmaier has 24 hospital affiliations:

  • Los Alamitos Medical Center 
  • St. Joseph Hospital - Orange 


  • Spanish
  • English

Similar doctors nearby

Dr. Ronald Pennington

Obstetrics & Gynecology
39 years experience
Newport Beach, CA

Dr. Dale Braithwaite

Obstetrics & Gynecology
33 years experience
Newport Beach, CA

Dr. Weatherford Clayton

Obstetrics & Gynecology
Newport Beach, CA

Dr. Brooke Hargrove

Obstetrics & Gynecology
4 years experience
Newport Beach, CA

Dr. Bernard Feldman

Obstetrics & Gynecology
38 years experience
Newport Beach, CA

Dr. Lisa Diaz

Obstetrics & Gynecology
20 years experience
Newport Beach, CA
Search All Similar Doctors
Additional Information
Dr. Mark A Rettenmaier MD is a male Obstetrician & Gynecologist, has 34 years of experience and practices in Obstetrics & Gynecology and Gynecologic Oncology.
Where does Dr. Mark A. Rettenmaier practice?
Dr. Mark Rettenmaier has 4 office locations.
Dr. Mark Rettenmaier practices Obstetrics & Gynecology and Gynecologic Oncology near Newport Beach, CA.
Additional practice locations include: Pomona, CA and Riverside, CA.
See Newport Beach Obstetricians & Gynecologists and Newport Beach Oncologists.