Dr. Ernesto Casillas Jr., MD

Dr. Casillas practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Casillas' NPI, 1952832354, was assigned on March 27, 2017. Dr. Casillas graduated from Keck School of Medicine of USC in 2017. Dr. Casillas holds California license A157855.

Dr. Casillas' primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Dr. Casillas' primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dr. Casillas is also affiliated with Zuckerberg San Francisco General Hospital and Trauma Center. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Casillas to 6 more medical groups, 5 group practices and clinics and 1 physician office, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Casillas practices, 8 sites in all. Vendor and product names are available with a free account.

Pulmonary disease is Dr. Casillas' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Casillas is board certified in diplomate of the aabip by the American Association for Bronchology and Interventional Pulmonology (AABIP). Dmand AI has Dr. Casillas' licenses on file in 2 states: California and Massachusetts.

CMS data shows 122 Medicare services from Dr. Casillas across 4 procedure codes in 2024, for 73 Medicare patients. Medicare paid $11,342 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 73 Medicare patients who saw Dr. Casillas in 2024. The largest group is 65 to 74, with 32 patients. 68% of them have high blood pressure, and 67% have high cholesterol. 79% are also on Medicaid. Their average risk score is 2.04, 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. Casillas' median patient age at 72, with 48% women.

In 2024, Dr. Casillas wrote 39 Medicare Part D claims for 27 patients. 62% of them were for generic drugs. They cover 5 drugs, with $29,105 in total drug cost. In 2022, CMS named 27 claims across 2 drugs.

Dr. Casillas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Casillas as offering telehealth.

Dmand AI links 5 papers to Dr. Casillas, published from 2012 to 2024. The most frequent topics are Ultracentrifugation. Dr. Casillas' most frequent co-authors are Ramsy Assaf Abdelghani, MD, Fayez M. Kheir, MD and Adnan Majid, MD.

CMS Open Payments shows 11 general payments to Dr. Casillas from 6 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Pulmonx Corporation paid the most, $295.

Dr. Casillas graduated from Keck School of Medicine of USC in 2017.

Dr. Casillas is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.