office hours and days
Dr. Chien
Monday, Thursday, Friday 9:00 am to 5:00 pm in Stockton
Tuesday, Wednesday 9:00 am to 5:00 pm in Modesto
 Dr. Diaz
Monday-Thursday 7:00 am to 5:30 pm
Friday---Closed

Gervacio D. Diaz III, M.D.
Aprima log in

MEDICAL SCHOOL
University Of Santo Tomas, Faculty Of Medicine and Surgery
Graduated in 1989

INTERNSHIP HOSPITAL
MD Genl Hospital
Complete in 1997

RESIDENCY HOSPITAL
MD Genl Hospital

Complete in 1999

Medical Group
A member of Sutter Gould Medical Foundation's Community Provider Network. Available through Sutter Gould for patients with HMO insurances only.

Medical Affiliation(s)
Central Valley Medical Group
Sutter Gould Community Provider Network
Sutter Medical Network

Hospital Affiliation(s)
Memorial Medical Center, Modesto
Doctors Medical Center

Health plans accepted by
Gervacio Diaz, III, M.D.

Below is a list of plans accepted by this doctor in relation to the Sutter Health network of care. It may not include PPO plans that the doctor does accept.
You can contact the doctor's office to learn about all plans accepted by this practice.
If you have an HMO plan, please contact your primary care physician for a referral to a specialist.
It's always a good idea to check with your health plan to verify the details of your coverage.

Aetna
HMO 
Health Fund HMO 
Quality Point of Service (QPOS) 
US Access 

Anthem Blue Cross of California
Blue Cross HMO/POS 
Blue Cross Large Group HMO 

Blue Shield of California
Blue Shield Access + HMO Plan 
Blue Shield Access + HMO Plan for Individuals and Families 

CIGNA
Commercial HMO/POS 
Network HMO/POS 

Health Net
ELECT Open Access POS for Large and Small Groups 
ELECT POS for Large and Small Groups 
HMO - Flex Funded 
Health Net HMO: Large and Small Group 
Health Net Medicare Advantage HMO 
Optimizer HMO 
SELECT three-tier POS for Large and Small Groups 
SELECT two-tier POS for Large and Small Groups 
Salud HMO Plus 

UnitedHealthcare
AARP MediCareComplete SecureHorizons (Medicare Advantage) Plan 1 - Participation limited to Stanislaus County 
Signature POS 
Signature Value (HMO) 

Modesto

Modesto, CA 95355
(209) 529-8506p (209) 529-8524f