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Mercedes Tomioka, MD

Mercedes Tomioka, MD

(949) 791-3101
Primary Specialties
  • Geriatric Medicine
    (Board Certified)
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • Hoag Affiliated Physicians
  • Hoag Medical Group
  • Practice Started
    2003
  • Additional Languages Spoken
    Japanese, Spanish

Primary Office

Address:
16300 Sand Canyon Ave.
Suite 311
Irvine, CA 92618
Phone:
(949) 791-3101
Fax:
(949) 791-3112
Web Page:
www.hoag.org/Hoag-Medical-Group/Pages/Mercedes-Tomioka.aspx

Secondary Office

Address:
16300 Sand Canyon Ave
Suite 612
, CA

Physician Bio

A native speaker of Spanish and conversational Japanese, Dr. Tomioka brings cultural diversity, excellent skills, and her compassionate nature to her profession as a physician. Her grandparents immigrated to Peru prior to World War II and that is where Dr. Tomioka spent her early years surrounded by family, which included many physicians. Always concerned about everyone around her, her family encouraged her to become a physician to fulfill her desire to help others.

Practicing since 2003, Dr. Tomioka chose a career in Internal Medicine as she truly appreciates the challenge. She enjoys being exposed to a broad variety of skills and applying her knowledge to help her patients. She is excited to lend her talent and innovative ideas to Hoag Medical Group.

Dr. Tomioka has extensive training and always pursues ways to improve her skills and knowledge. She attended medical school at Universidad Nacional Mayor de San Marcos in Lima, Peru, completed her residency in Internal Medicine at St. Barnabas Hospital (affiliated with The New York Hospital - Cornell Medical Center), and finished with a fellowship in Geriatrics at UC Davis.

Outside of work, Dr. Tomioka enjoys spending time with her husband and 2 year old daughter. Her focus is on bringing new experiences to her daughter and they often travel and visit museums during their weekend excursions.

Education

  • Medical School:
    Universidad Nacional Mayor de San Marcos - 1996
  • Residency:
    National Hospital
  • Internship:
    St. Barnabas Hospital
  • Residency:
    St. Barnabas Hospital - 2002
  • Fellowship:
    University of CA Davis Medical Center - 2003

Certifications

Board Certifications:
- Internal Medicine
- Geriatric Medicine

Areas of Interest

  • Senior Health
  • Preventative Care

Health Insurance Accepted (Please verify with your health plan and/or physician’s office.)

  • HMO - AETNA
  • HMO - ANTHEM SELECT ADVANTAGE (MEDICARE ADVANTAGE PLAN FOR CA)
  • HMO - BLUE SHIELD 65 PLUS CHOICE
  • HMO - BLUE SHIELD 65 PLUS SENIOR
  • HMO - BLUE SHIELD OF CALIFORNIA
  • HMO - CIGNA
  • HMO - CIGNA (HOAG/SJHS PREFERRED)
  • HMO - SCAN
  • MDCR - MEDICARE
  • OAP - CIGNA
  • PPO - AETNA
  • PPO - ANTHEM MEDICARE PREFERRED STANDARD
  • PPO - BEECH STREET
  • PPO - BLUE SHIELD OF CALIFORNIA
  • PPO - CIGNA
  • PPO - COVENTRY (FORMERLY CCN/FIRST HEALTH/AFFORDABLE)
  • PPO - HEALTH NET
  • PPO - INTERPLAN / HEALTHSMART
  • PPO - MULTIPLAN/PHCS
  • PPO - ORANGE COUNTY FOUNDATION
  • PPO - PRIVATE HEALTH CARE SYSTEMS (PHCS)
  • PPO - UNITED HEALTH CARE SYSTEMS

Insurance ID Numbers

Aetna: *847719
Blue Cross: *YNL031
Blue Shield: 00A796040
CIGNA: 8576503
CIGNA Select: 8576503026
Health Net: 3620131416
Health Net Senior: n/a
SCAN: 996-135989
United Healthcare: *0279830033

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

Have Questions? Contact Us Today.

855-450-4464