Dr. Allen William Cortez, MD

Dr. Cortez practices at Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California.

Dr. Cortez's NPI, 1518916089, was assigned on May 10, 2006. Dr. Cortez graduated from University Of Michigan Medical School in 1991. Dr. Cortez holds California license G76718.

Dr. Cortez's primary practice is Santa Rosa Surgery and Endoscopy Center, at 34 Mark West Springs Road, Suite 100, Santa Rosa, CA 95403. The practice phone is (707) 541-3500.

Dr. Cortez's primary practice is Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California. Dr. Cortez is also affiliated with Sutter Santa Rosa Regional Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Cortez 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. Cortez practices, 5 sites in all. Vendor and product names are available with a free account.

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

Dmand AI lists abdominal hernia repair surgery, appendectomy, cancerous skin growth removal, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, gastrointestinal bleeding and groin hernia surgery among the conditions Dr. Cortez treats.

CMS data shows 471 Medicare services from Dr. Cortez across 12 procedure codes in 2024, for 300 Medicare patients. Medicare paid $58,193 for them.

CMS counts 300 Medicare patients who saw Dr. Cortez in 2024. The largest group is 65 to 74, with 140 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 24% are also on Medicaid. Their average risk score is 1.79, 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. Cortez's median patient age at 57, with 66% women.

In 2024, Dr. Cortez wrote 161 Medicare Part D claims for 88 patients. 97% of them were for generic drugs. CMS names the drug for 100 of them, across 3 drugs with 11 or more claims each, at $277 in total drug cost. In 2023, CMS named 124 claims across 5 drugs.

Dr. Cortez accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cortez as offering telehealth. CMS counts 15 procedures of hernia repair - groin (open) by Dr. Cortez, more than 94% of the clinicians it reports for that procedure.

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

Hernia repair (minimally invasive): 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)

Skin biopsy: 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 147 general payments to Dr. Cortez from 20 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 38% of the total. Ethicon Inc. paid the most, $16,297.

Dr. Cortez graduated from University Of Michigan Medical School in 1991. Dr. Cortez is a member of SLS.

Dr. Cortez is in network with 10 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.