Dr. Sami B. Hamamji, MD

Dr. Hamamji practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.

Dr. Hamamji's NPI, 1457425282, was assigned on November 20, 2006. Dr. Hamamji graduated from St Joseph's University Medical School in 1980. Dr. Hamamji holds California license A49367.

Dr. Hamamji's primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.

Dr. Hamamji's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. The medical group on file is Orange Surgical Associates. Dmand AI also links Dr. Hamamji to 1 more physician office 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. Hamamji practices, 3 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Hamamji's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hamamji is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Hamamji's licenses on file in 2 states: California and Colorado.

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, bariatric surgery, cancerous skin growth removal, colon removal and esophagus, stomach, or upper small intestine surgery among the conditions Dr. Hamamji treats.

CMS data shows 320 Medicare services from Dr. Hamamji across 7 procedure codes in 2024, for 196 Medicare patients. Medicare paid $42,656 for them.

CMS counts 196 Medicare patients who saw Dr. Hamamji in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.64, 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. Hamamji's median patient age at 58, with 59% women.

In 2024, Dr. Hamamji wrote 264 Medicare Part D claims for 166 patients. 99% of them were for generic drugs. CMS names the drug for 200 of them, across 5 drugs with 11 or more claims each, at $1,110 in total drug cost. In 2023, CMS named 182 claims across 4 drugs.

Dr. Hamamji accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 30 procedures of hernia repair (minimally invasive) by Dr. Hamamji, more than 95% of the clinicians it reports for that procedure.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 71 general payments to Dr. Hamamji from 14 drug and device companies from 2016 to 2025. Education make up the largest share, 43% of the total. Intuitive Surgical, Inc. paid the most, $8,592.

Dmand AI lists 1 award for Dr. Hamamji.

Dr. Hamamji graduated from St Joseph's University Medical School in 1980. Dr. Hamamji is a member of ACS, ASMBS and CMA.

Dr. Hamamji is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.