Dr. Ian Bice Holmes, MD

Dr. Holmes practices at Gastroenterology East at Gateway in Portland, Oregon.

Dr. Holmes' NPI, 1073933099, was assigned on April 17, 2014. Dr. Holmes holds Oregon license MD204232.

Dr. Holmes' primary practice is Gastroenterology East at Gateway, at 1111 Ne 99th Ave, Portland, OR 97220 in Multnomah County. The practice phone is (503) 963-3030.

Dr. Holmes' primary practice is Gastroenterology East at Gateway in Portland, Oregon. Dr. Holmes is also affiliated with Providence Portland Medical Center. The medical group on file is The Oregon Clinic. Dmand AI also links Dr. Holmes to 3 more hospitals and 1 group practice or clinic, each named with a free account.

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

Gastroenterology is Dr. Holmes' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Holmes is licensed in Oregon.

CMS data shows 162 Medicare services from Dr. Holmes across 8 procedure codes in 2024, for 168 Medicare patients. Medicare paid $18,175 for them.

CMS counts 168 Medicare patients who saw Dr. Holmes in 2024. The largest group is 65 to 74, with 82 patients. 70% of them have high blood pressure, and 60% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.61, 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. Holmes' median patient age at 68, with 52% women.

In 2024, Dr. Holmes wrote 352 Medicare Part D claims for 175 patients. 83% of them were for generic drugs. CMS names the drug for 243 of them, across 11 drugs with 11 or more claims each, at $30,608 in total drug cost. In 2023, CMS named 167 claims across 7 drugs.

Dr. Holmes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Holmes as offering telehealth. CMS counts 143 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Holmes, more than 84% of the clinicians it reports for that procedure.

CMS Open Payments shows 19 general payments to Dr. Holmes from 3 drug and device companies from 2019 to 2025. Grants make up the largest share, 98% of the total. Boston Scientific Corporation paid the most, $101,558.