Dr. Zeid K. Kayali, MD

Dr. Kayali practices at Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County.

Dr. Kayali's NPI, 1396777538, was assigned on July 7, 2006. Dr. Kayali graduated from University of Aleppo Faculty of Medicine in 1995. Dr. Kayali holds California license A71164.

Dr. Kayali's primary practice is Arrowhead Regional Medical Center, at 400 North Pepper Avenue, Colton, CA 92324 in San Bernardino County. The practice phone is (909) 580-1000.

Dr. Kayali's primary practice is Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County. Dr. Kayali is also affiliated with Riverside Community Hospital. The medical group on file is Digestive Associates. Dmand AI also links Dr. Kayali to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kayali practices, 5 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Kayali's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kayali is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Kayali's licenses on file in 4 states: California, Nevada, Iowa and Illinois.

Dmand AI lists acid reflux, cirrhosis of the liver, colonoscopy, esophagus, stomach, or upper small intestine surgery, fatty liver, gastrointestinal bleeding, hepatitis c and irritable bowel syndrome (IBS) among the conditions Dr. Kayali treats.

CMS data shows 727 Medicare services from Dr. Kayali across 12 procedure codes in 2024, for 388 Medicare patients. Medicare paid $63,417 for them.

CMS counts 388 Medicare patients who saw Dr. Kayali in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have high blood pressure, and 66% have high cholesterol. 77% are also on Medicaid. Their average risk score is 2.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Kayali's median patient age at 59, with 53% women.

In 2024, Dr. Kayali wrote 2,220 Medicare Part D claims for 438 patients. 76% of them were for generic drugs. CMS names the drug for 1,943 of them, across 33 drugs with 11 or more claims each, at $1,252,200 in total drug cost. In 2023, CMS named 1,783 claims across 36 drugs.

Dr. Kayali accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 139 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Kayali, more than 83% of the clinicians it reports for that procedure.

Dmand AI links 13 papers to Dr. Kayali, published from 2014 to 2024. 2024 was the busiest year, with 2. The most frequent topics are Hepacivirus, Liver Cirrhosis and Disease Progression. Dr. Kayali has published most often in Liver Int. Dr. Kayali's most frequent co-authors are Ammar Qureshi, MD and William J. Sandborn, MD.

Dmand AI links Dr. Kayali to 5 clinical trials. 2 are still active or recruiting. Conditions studied include Colitis, Ulcerative, Colitis and Fatty Liver. Eli Lilly and Company sponsors the most, 5. Open Payments lists research payments to Dr. Kayali that name 5 trials.

CMS Open Payments shows 1,098 general payments to Dr. Kayali from 38 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 79% of the total. Gilead Sciences, Inc. paid the most, $149,762. It also lists 13 research payments totaling $43,697 from 2016 to 2024, naming 5 clinical trials.

Dr. Kayali graduated from University of Aleppo Faculty of Medicine in 1995.

Dr. Kayali is in network with 19 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.