Dr. Luis Ramon Barreras, FACP, MD

Dr. Barreras practices at The Oncology Institute of Hope and Innovation - Brandon in Cerritos, California.

Dr. Barreras' NPI, 1780676346, was assigned on August 19, 2005. Dr. Barreras graduated from University of Miami, Miller School of Medicine in 1981. Dr. Barreras holds Florida license 0041162.

Dr. Barreras' primary practice is The Oncology Institute of Hope and Innovation - Brandon, at 18000 Studebaker Rd, Cerritos, CA 90703 in Los Angeles County. The practice phone is (310) 699-3970.

Dr. Barreras' primary practice is The Oncology Institute of Hope and Innovation - Brandon in Cerritos, California. Dr. Barreras is also affiliated with Holy Cross Health. The medical group on file is The Oncology Institute of Hope and Innovation. Dmand AI also links Dr. Barreras to 1 more hospital, 3 group practices and clinics, 2 medical groups and 1 physician office, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barreras practices, 6 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Barreras' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Barreras is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Barreras' licenses on file in 2 states: Florida and Illinois.

Dmand AI lists breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT), lung cancer and lymphoma among the conditions Dr. Barreras treats.

CMS data shows 9,907 Medicare services from Dr. Barreras across 22 procedure codes in 2024, for 289 Medicare patients. Medicare paid $201,865 for them.

CMS counts 289 Medicare patients who saw Dr. Barreras in 2024. The largest group is 65 to 74, with 122 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.63, 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. Barreras' median patient age at 74, with 54% women.

In 2024, Dr. Barreras wrote 1,176 Medicare Part D claims for 269 patients. 78% of them were for generic drugs. CMS names the drug for 754 of them, across 29 drugs with 11 or more claims each, at $315,221 in total drug cost. In 2023, CMS named 1,654 claims across 61 drugs.

Dr. Barreras accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 2 papers to Dr. Barreras. Dr. Barreras' most frequent co-author is Stephen Garrett Marcus, MD.

Dmand AI links Dr. Barreras to 3 clinical trials. Conditions studied include Anemia, Sickle Cell, Carcinoma, Non-Small-Cell Lung and Leukemia, Myelogenous, Chronic, BCR-ABL Positive.

CMS Open Payments shows 1,339 general payments to Dr. Barreras from 91 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 81% of the total. Sanofi and Genzyme US Companies paid the most, $3,700. It also lists 9 research payments totaling $14,947 from 2016 to 2019.

Dmand AI lists 1 award for Dr. Barreras, most recently CMS Stage 1 2012 in 2012.

Dr. Barreras graduated from University of Miami, Miller School of Medicine in 1981. Dr. Barreras is a member of ASCO.

Dr. Barreras is in network with 17 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.