Dr. Walid S. Arnaout, MD

Dr. Arnaout practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health.

Dr. Arnaout's NPI, 1023072816, was assigned on April 17, 2006. Dr. Arnaout graduated from American University of Beirut Faculty of Medicine in 1985. Dr. Arnaout's California license number on file is A53180.

Dr. Arnaout's primary practice is Dignity Health - Northridge Hospital Medical Center, at 18300 Roscoe Blvd, Northridge, CA 91325 in Los Angeles County. The practice phone is (818) 885-8500.

Dr. Arnaout's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. Dr. Arnaout is also affiliated with Los Robles Regional Medical Center. The medical group on file is Northridge Trauma Surgeons. Dmand AI also links Dr. Arnaout to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.

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

Surgery is Dr. Arnaout's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Arnaout is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Arnaout's licenses on file in 3 states: California, New York and West Virginia.

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, collapsed lung, colon removal, gallbladder removal, groin hernia surgery and intestinal or bowel obstruction among the conditions Dr. Arnaout treats.

CMS data shows 466 Medicare services from Dr. Arnaout across 10 procedure codes in 2024, for 323 Medicare patients. Medicare paid $46,219 for them.

CMS counts 323 Medicare patients who saw Dr. Arnaout in 2024. The largest group is 75 to 84, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 53% are also on Medicaid. Their average risk score is 2.42, 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. Arnaout's median patient age at 61, with 41% women.

In 2024, Dr. Arnaout wrote 160 Medicare Part D claims for 90 patients. 100% of them were for generic drugs. CMS names the drug for 102 of them, across 3 drugs with 11 or more claims each, at $404 in total drug cost. In 2023, CMS named 72 claims across 3 drugs.

Dr. Arnaout accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Arnaout as offering telehealth. CMS counts 15 procedures of hernia repair (minimally invasive) by Dr. Arnaout, more than 81% 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)

Dmand AI links 9 papers to Dr. Arnaout. The most frequent topics are Liver, Liver Transplantation and Albumins. Dr. Arnaout's most frequent co-authors are Stephen A. Geller, MD, Elham Khanafshar, MD and John M. Vierling, MD.

CMS Open Payments shows 47 general payments to Dr. Arnaout from 7 drug and device companies from 2016 to 2025. Education make up the largest share, 84% of the total. Intuitive Surgical, Inc. paid the most, $37,170.

Dmand AI lists 3 awards for Dr. Arnaout, most recently Top Doctors:LA Area in 2013.

Dr. Arnaout graduated from American University of Beirut Faculty of Medicine in 1985. Dr. Arnaout is a member of ACS.

Dr. Arnaout is in network with 18 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.