Dr. Trevan Dale Fischer, MD

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

Dr. Fischer's NPI, 1154580017, was assigned on June 5, 2008. Dr. Fischer graduated from OU College of Medicine in 2008. Dr. Fischer holds California license 135300.

Dr. Fischer'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. Fischer's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dr. Fischer is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Fischer to 2 more hospitals and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fischer practices, 4 sites in all. Vendor and product names are available with a free account.

Surgical oncology is Dr. Fischer's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Fischer is board certified in complex general surgical oncology by the American Board of Surgery. Dmand AI has Dr. Fischer's licenses on file in 2 states: California and Florida.

Dmand AI lists abdominal adhesion surgery, appendectomy, cancerous skin growth removal, gallbladder removal, groin hernia surgery, intestinal or bowel obstruction and removal of damaged skin or skin graft among the conditions Dr. Fischer treats.

CMS data shows 401 Medicare services from Dr. Fischer across 9 procedure codes in 2024, for 225 Medicare patients. Medicare paid $46,294 for them.

CMS counts 225 Medicare patients who saw Dr. Fischer in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.53, 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. Fischer's median patient age at 74, with 43% women.

In 2024, Dr. Fischer wrote 12 Medicare Part D claims. 92% of them were for generic drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Fischer for performance year 2024, reported as part of a group. Dr. Fischer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 86 procedures of melanoma (skin cancer) excision by Dr. Fischer, more than 92% of the clinicians it reports for that procedure.

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

Removal of skin lesions: 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 35 papers to Dr. Fischer, published from 2011 to 2023. 2022 was the busiest year, with 7. The most frequent topics are Melanoma, Breast Neoplasms and Pancreatic Neoplasms. Dr. Fischer has published most often in J Surg Oncol. Dr. Fischer's most frequent co-authors are Melanie R. Goldfarb, MD, Anton J. Bilchik, MBA, MD, PhD and Wade Christopher.

Dmand AI links Dr. Fischer to 19 clinical trials, 5 of them phase 2 studies. Conditions studied include COVID-19, Melanoma and Nevi and Melanomas. Regeneron Pharmaceuticals sponsors the most, 4.

CMS Open Payments shows 49 general payments to Dr. Fischer from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $256.

Dmand AI lists 2 awards for Dr. Fischer, most recently Administrative Chief Fellow in 2017.

Dr. Fischer graduated from OU College of Medicine in 2008. Dr. Fischer is a member of ACS and SSO.

Dr. Fischer is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.