New Patients

Dr. Tieng welcomes new patients and accepts most insurance plans.

She sees patients at 2 offices in Rancho Cucamonga and Redlands, and performs procedures at multiple surgical centers and hospitals across the Inland Empire. Dr. Tieng schedules most office visits and procedures within 2 weeks notice.

Dr. Tieng accommodates your schedule while delivering safe, compassionate and confidential care.

Clinic Hours

Monday 9:00 AM – 4:30 PM
Tuesday 9:30 AM – 3:00 PM
Wednesday Procedures
Thursday Procedures
Friday Procedures

Office Locations

Dr. Tieng has 2 office locations and is easily accessible to anyone living in Upland, Rancho Cucamonga, Redlands and San Bernardino:

Rancho Cucamonga:
10801 Foothill Blvd
Suite 106
Rancho Cucamonga, CA
91730

Redlands:
375 Terracina Blvd
Redlands, CA 92373

Appointments

Please call Dr. Tieng’s office at (909) 255-7200 to schedule your appointment:


Monday – Thursday
9 AM – 5 PM

Friday
9 AM – 2 PM

APPOINTMENTS

(909) 255-7200

FOR EMERGENCIES, DIAL 911

Why Choose A “GI”?

Gastroenterologists, or “GIs,” are medical specialists with extensive training in diseases of the digestive tract.

GIs can answer your questions, perform exams such as colonoscopy and upper endoscopy in making a diagnosis, and prescribe the best course of treatment to help you feel better.

PAYMENT

✓ Most Insurances
✓ Most HMOs
✓ Medi-Cal
✓ Cash Patients

Procedures

Colonoscopy

A tiny camera examines
your large intestine.

Upper Endoscopy

A tiny camera examines your
upper upper digestive system.

Esophageal Dilation

A procedure stretches the
narrow area of your esophagus.

Flexible Sigmoidoscopy

A tiny camera examines
your lower large intestine.

Office Appointments

Dr. Tieng performs her initial consultations, physical exams, and follow-up appointments at her 2 offices in Rancho Cucamonga and Redlands, California.

Dr. Tieng and her medical assistants Pam, Tabitha, Izzy and Linda look forward to providing you with a safe, comfortable, and confidential experience.

Rancho Cucamonga:

Andrea Tieng, MD
(909) 255-7200
10801 Foothill Blvd, Suite 106
Rancho Cucamonga, CA 91730

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Redlands:

Andrea Tieng, MD
(909) 255-7200
375 Terracina Blvd
Redlands, CA 92374

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Inpatient & Outpatient Facilities

Dr. Tieng performs procedures at San Antonio Ambulatory Surgical Center near her office in Rancho Cucamonga and at the Mountain View Surgical Center near her office in Redlands, California.

She also maintains outpatient and inpatient privileges at major hospitals in the San Bernardino area. Her office will work with you to find the best facility for your needs.

San Antonio Ambulatory
Surgery Center
901 San Bernardino Rd, Second Floor
Upland, CA 91786

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Mountain View
Surgery Center
10408 Industrial Circle
Redlands, CA 92374

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FULL HOSPITAL LIST →
 

OVER THE
AGE OF 45?

FIND OUT HOW
A COLONOSCOPY
CAN SAVE YOUR LIFE.