0 reviews
Summary
Dr. Warren Fan is a cardiovascular disease specialist who also practices internal medicine. He earned his medical degree from Kaohsiung Medical College in Taiwan and brings six decades of experience to his practice. Dr. Fan speaks English with his patients.
Dr. Fan practices in Upland and Rancho Cucamonga, California, with affiliations at Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. He treats patients with colon polyps, hemorrhoids, and obstructive sleep apnea. His procedural expertise includes performing colonoscopies, lower gastrointestinal endoscopy, and providing sedation services for patient comfort during procedures.
Dr. Fan practices in Upland and Rancho Cucamonga, California, with affiliations at Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. He treats patients with colon polyps, hemorrhoids, and obstructive sleep apnea. His procedural expertise includes performing colonoscopies, lower gastrointestinal endoscopy, and providing sedation services for patient comfort during procedures.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 60 years of experience
- 1 insurance plan accepted
- speaks English
- Kaohsiung (Takau) Med Coll Taiwan (244-01 Eff 1/1971)
- 2 specialties
- 1 area of expertise
- 6 office locations
- Male
Office Locations
Dr. Warren C Fan has 6 locationsDavid E Engelhardt Md Inc
631 N 13th Ave Ste BUpland, CA 91786 Tel: (909) 931-3838
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Warren C Fan | Dr. Syed W Bokhari, MD | Dr. Raghav Sharma, MD | Dr. Wendy Crum Ahlering |
| Cardiovascular Disease | Cardiovascular Disease | Cardiovascular Disease | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 60 Years of Experience | 35 Years of Experience | 16 Years of Experience | 43 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option |
| Speaks English | Speaks English, Spanish | Speaks English, Hindi | |
| Upland , CA | Riverside , CA | Winter Park , FL | Anaheim , CA |
| Med School: Kaohsiung (Takau) Med Coll Taiwan (244-01 Eff 1/1971) | Med School: King Edward Medical University | Med School: New York Medical College | Med School: Keck School Of Medicine Of The University Of Southern California |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Warren C Fan
Medical Specialties
Dr. Warren C Fan has the following 2 specialties
Specialty Expertise
Dr. Warren C Fan has the following area of expertise
Certifications, License, & Education
60 Years Experience
Education & Training
Medical School
Graduated from Kaohsiung (Takau) Med Coll Taiwan (244-01 Eff 1/1971) in 1966.
NPI Number
Dr. Fan's NPI number is 1245260538.
Similar Doctors
Frequently Asked Questions
- Where is Dr. Warren Fan's office located?
- Dr. Warren Fan's office is located at 631 N 13th Ave Ste B, Upland, CA, 91786.
- How can I make an appointment with Dr. Warren Fan?
- You can find contact information for Dr. Warren Fan here on Vitals.
- Does Dr. Warren Fan accept virtual/telehealth appointments?
- Dr. Warren Fan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- What languages does Dr. Warren Fan speak?
- Dr. Warren Fan speaks English.
- Is Dr. Warren Fan accepting new patients?
- Dr. Warren Fan is accepting new patients on Vitals. View Dr. Warren Fan's profile on Vitals to make an appointment.
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.





