Shahid Hayat, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
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655 providers
Availability last updated 07/20/2025
Shahid Hayat, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
Selma Prechel, OD
Internist
1100 W Stewart Dr Orange
Orange, CA 92868
Shahriar Jarchi, MD
Internist
638 E Colorado Ave
Glendora, CA 91740
Selma Prechel, OD
Internist
1149 S Grand Avenue
Glendora, CA 91740
Antonio Zamorano, DO
Family Physician
15115 Amar Rd
La Puente, CA 91744
Erica Chen, MD, is a board-certified allergy and immunology specialist practicing at the Allergy and Asthma Specialist Doctors, Inc. location in West Covina, California. Her practice is centered around the treatment of allergic diseases, including nasal allergies and asthma.
Dr. Chen earned her medical degree from the Keck School of Medicine at the University of Southern California. Subsequently, she completed her combined internal medicine pediatric residency and allergy and immunology fellowship training at the Los Angeles County Hospital at the University of Southern California.
Dr. Chen is board certified by the American Board of Allergy and Immunology. She has contributed to multiple peer-reviewed scientific presentations and publications. She also holds numerous professional society memberships, including the American Academy of Allergy Asthma and Immunology and the American College of Allergy, Asthma and Immunology.
Dr. Chen is currently accepting new patients and looks forward to welcoming them to Allergy and Asthma Specialist Doctors, Inc.
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Dr. Erica Chen, MD
Allergist
1250 S. Sunset Ave
Suite 340
West Covina, CA 91790
Advanced Gastroenterology & Liver Institute in Anaheim, Santa Ana, Fullerton, and Huntington Beach, California, provides comprehensive gastroenterology care. People travel from all over to consult with Tahmina Haq, MD, who is well-known for her compassionate care and clinical expertise.
At Advanced Gastroenterology & Liver Institute, Dr. Haq specializes in diagnosing and treating digestive disorders like Crohn’s disease, ulcerative colitis, and hepatitis. She also performs a number of diagnostic procedures, including upper endoscopy, endoscopic ultrasound, and endoscopic retrograde cholangiopancreatography (ERCP).
In addition, people come to Advanced Gastroenterology & Liver Institute for colon cancer screenings and treatment of colon polyps. Dr. Haq maintains an adenoma detection rate (ADR) well above the national benchmark of 25%, as established by leading Gastroenterology societies and published guidelines from the ASGE, ACG, and peer-reviewed medical journals. This reflects her commitment to high-quality, thorough, and preventive patient care.
After earning her Doctor of Medicine at Shifa College of Medicine in Rawalpindi, Islamabad, Pakistan, Dr. Haq completed her internal medicine residency at Loma Linda University Medical Center in Loma Linda, California.
She then completed her gastroenterology fellowship at the University of California, San Francisco (UCSF) and her advanced endoscopy fellowship at Harbor-UCLA Medical Center in West Carson, California.
Dr. Haq takes the time to get to know her patients, building trust and long-lasting relationships. When not taking care of her patients, Dr. Haq enjoys traveling and spending time with her family.
Call Advanced Gastroenterology & Liver Institute or use the online booking button to schedule an appointment today.
Tahmina Haq, MD
Gastroenterologist
801 N. Tustin Ave.
Ste 700
Santa Ana, CA 92705
Anooshiravan Hami, MD
Pulmonologist
1401 West Ball Road
Anaheim, CA 92802
Selma Prechel, OD
Internist
1401 W Ball Road
Anaheim, CA 92802
Dr. Melanchton Mangoba, MD
Internist
8951 Granite Hill Dr
Riverside, CA 92509
Selma Prechel, OD
Internist
1442 Irvine Blvd Suite 104
Tustin, CA 92780
Cynthia Recinto, MD
Internist
3766 Nye Ave
Riverside, CA 92505
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