0 reviews
Summary
Dr. Doris Tan is a family medicine physician and psychiatrist with 39 years of medical experience. She earned her medical degree from Ohio University College of Osteopathic Medicine and has built extensive expertise in treating patients across multiple areas of healthcare. Her dual specialization allows her to provide comprehensive care that addresses both physical health concerns and mental health needs.
Dr. Tan practices at Mercy Medical Center in Merced, California, and maintains affiliations with Community Regional Medical Center and Mercy Medical Center. She specializes in treating substance use disorders, including teen substance use issues and amphetamine addiction. Her practice includes comprehensive drug screening services to support addiction treatment and recovery planning.
Dr. Tan practices at Mercy Medical Center in Merced, California, and maintains affiliations with Community Regional Medical Center and Mercy Medical Center. She specializes in treating substance use disorders, including teen substance use issues and amphetamine addiction. Her practice includes comprehensive drug screening services to support addiction treatment and recovery planning.
AI-generated from data on this provider profile.
Quick Facts
- 39 years of experience
- 22 insurance plans accepted
- Ohio University College Of Osteopathic Medicine
- 2 specialties
- 13 areas of expertise
- 2 hospital affiliations
- 1 office location
- Female
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Doris Tiu Tan, DO | Reanna Lynn Clayton MSN, FNP-C | Dr. Georgine Nanos, MD | Dr. Shakeilla Smithbey, MD |
| Family Medicine | Family Medicine | Family Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 39 Years of Experience | 24 Years of Experience | 15 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish | Speaks English | |
| Merced , CA | Templeton , CA | Encinitas , CA | Houston , TX |
| Med School: Ohio University College Of Osteopathic Medicine | Med School: George Washington University School Of Medicine & Health Sciences | Med School: Howard University College Of Medicine | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Doris Tiu Tan
Medical Specialties
Dr. Doris Tiu Tan has the following 2 specialties
Specialty Expertise
Dr. Doris Tiu Tan has the following 13 areas of expertise
Certifications, License, & Education
39 Years Experience
MEDICAL LICENSE
Doctor Of Osteopathy, California, 2026, Expired
EDUCATION & TRAINING
Medical School
Ohio University College Of Osteopathic MedicineGraduated in 1987
Similar doctors
Frequently Asked Questions
- Which hospitals is Dr. Doris Tan affiliated with?
- Dr. Doris Tan is affiliated with Community Regional Medical Center and Mercy Medical Center.
- Where is Dr. Doris Tan's office located?
- Dr. Doris Tan's office is located at 333 Mercy Ave, Merced, CA, 95340.
- Does Dr. Doris Tan accept my insurance?
- You can see the insurance plans that Dr. Doris Tan accepts on their Vitals profile.
- Does Dr. Doris Tan accept virtual/telehealth appointments?
- Dr. Doris Tan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. Doris Tan?
- You can find contact information for Dr. Doris Tan here on Vitals.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.




