Summary

Dr. Kwan Tan is an internal medicine physician who earned his medical degree from Oral Roberts University School of Medicine and completed his residency at Loma Linda University Medical Center. With 36 years of experience in internal medicine, he brings extensive expertise to patient care. Dr. Tan is fluent in Chinese and Spanish, allowing him to serve diverse patient populations in their preferred language.

Dr. Tan practices at multiple locations throughout Orange County, including UCI Health facilities in Los Alamitos, Lakewood, and Fountain Valley, as well as West Anaheim Medical Center and Orange Coast Memorial Medical Center in Fountain Valley, California. He specializes in managing diabetes, particularly Type 2 diabetes, and treats high cholesterol conditions in both adults and younger patients. His practice includes routine diagnostic testing such as complete blood counts and urine analysis to monitor patient health. Patients rate Dr. Tan 4.5 out of 5 stars for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 36 years of experience
  • speaks Chinese, Spanish
  • Loma Linda University Medical Center
  • 1 written review
  • 1 specialty
  • 7 areas of expertise
  • 7 hospital affiliations
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Joshua Medical Group

11100 Warner Ave Ste 118Fountain Valley, CA 92708
Mon8:30 am - 12:00 pm
TueClosed
Wed8:30 am - 12:00 pm
ThuClosed
Fri8:30 am - 12:00 pm
SatClosed
SunClosed

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Dr. Kwan Toh Tan, MDDr. Adewumi Bakare DMSc, PA-CKarthikeyan Viswanathan, DODr. Daniel Benhuri, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
36 Years of Experience 5 Years of Experience 12 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Chinese, Spanish Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) Speaks English, Tamil Speaks English
Fountain Valley , CAMesquite , TXPalo Alto , CABeverly Hills , CA
Med School: Oral Roberts University School Of Medicine Med School: University of Lynchburg - DMSc Med School: Bassett Medical Center - Cooperstown, New York Med School: Icahn School of Medicine at Mount Sinai
Current Profile
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Insurance Plans Accepted by Dr. Kwan Toh Tan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Kwan Toh Tan has the following specialty

Specialty Expertise

Dr. Kwan Toh Tan has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

36 Years Experience

Dr. Kwan Toh Tan holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2026.

Education & Training

Residency

Completed their residency at Loma Linda University Medical Center.

Medical School

Graduated from Oral Roberts University School Of Medicine in 1990.

NPI Number

Dr. Tan's NPI number is 1013099746.

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Frequently Asked Questions

How can I make an appointment with Dr. Kwan Tan?
You can find contact information for Dr. Kwan Tan here on Vitals.
Does Dr. Kwan Tan accept virtual/telehealth appointments?
Dr. Kwan Tan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Kwan Tan speak?
Dr. Kwan Tan speaks Chinese and Spanish.
Is Dr. Kwan Tan accepting new patients?
Dr. Kwan Tan is accepting new patients on Vitals. View Dr. Kwan Tan's profile on Vitals to make an appointment.
Does Dr. Kwan Tan accept my insurance?
You can see the insurance plans that Dr. Kwan Tan accepts on their Vitals profile.

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