Dr. Howard B. Hamat, MD

Dr. Hamat practices at North Houston Endoscopy & Surgery in Houston, Texas.

Dr. Hamat's NPI, 1376537605, was assigned on September 1, 2005. Dr. Hamat graduated from University of Toronto Faculty of Medicine in 1990. Dr. Hamat's Texas license number on file is A0100449.

Dr. Hamat's primary practice is North Houston Endoscopy & Surgery, at 275 Lantern Bend Suite 400, Houston, TX 77090. The practice phone is (281) 440-5797.

Dr. Hamat's primary practice is North Houston Endoscopy & Surgery in Houston, Texas. Dr. Hamat is also affiliated with HCA Houston Healthcare Northwest. The medical group on file is Houston Regional Gastroenterology Institute (HRGI). Dmand AI also links Dr. Hamat 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. Hamat practices, 5 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Hamat's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hamat is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Hamat has a license on file in Texas.

Dmand AI lists acid reflux, acute gastroduodenitis, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy, fatty liver, gastroduodenitis and gastroenteritis among the conditions Dr. Hamat treats.

CMS data shows 2,156 Medicare services from Dr. Hamat across 14 procedure codes in 2024, for 536 Medicare patients. Medicare paid $158,304 for them.

CMS counts 536 Medicare patients who saw Dr. Hamat in 2024. The largest group is 65 to 74, with 316 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 2% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hamat's median patient age at 67, with 59% women.

In 2024, Dr. Hamat wrote 2,539 Medicare Part D claims for 1,102 patients. 77% of them were for generic drugs. CMS names the drug for 2,240 of them, across 36 drugs with 11 or more claims each, at $1,404,183 in total drug cost. In 2023, CMS named 1,915 claims across 33 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Hamat for performance year 2024, reported as part of a group. Dr. Hamat accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 294 procedures of colonoscopy by Dr. Hamat, more than 97% of the clinicians it reports for that procedure.

Dmand AI links 1 paper to Dr. Hamat. Dr. Hamat's most frequent co-author is Philip L. Leggett, MD.

CMS Open Payments shows 745 general payments to Dr. Hamat from 46 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 46% of the total. Allergan Inc. paid the most, $22,443.

Dr. Hamat graduated from University of Toronto Faculty of Medicine in 1990.

Dr. Hamat is in network with 18 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.