Dr. Shawn Kent Hassler, MD

Dr. Hassler practices at Optimus Medical Group Inc in San Francisco, California.

Dr. Hassler's NPI, 1427122928, was assigned on November 17, 2006. Dr. Hassler graduated from University of Miami, Miller School of Medicine in 1995. Dr. Hassler holds California license A062683.

Dr. Hassler's primary practice is Optimus Medical Group Inc, at 870 Market St, San Francisco, CA 94102 in San Francisco County. The practice phone is (415) 397-0700.

Dr. Hassler's primary practice is Optimus Medical Group Inc in San Francisco, California. Dr. Hassler is also affiliated with California Pacific Medical Center Van Ness Campus. The medical group on file is Optimus Medical Group. Dmand AI also links Dr. Hassler to 2 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.

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

Infectious disease is Dr. Hassler's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Hassler is board certified in internal medicine by the American Board of Internal Medicine. Dr. Hassler is licensed in California.

Dmand AI lists acute gastroduodenitis, acute sinusitis, ADHD, anxiety, arthritis, atrial fibrillation and flutter, bipolar disorder and bronchitis among the conditions Dr. Hassler treats.

CMS data shows 907 Medicare services from Dr. Hassler across 7 procedure codes in 2024, for 193 Medicare patients. Medicare paid $83,311 for them. Every service was in an office.

CMS counts 193 Medicare patients who saw Dr. Hassler in 2024. The largest group is 65 to 74, with 105 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 29% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hassler's median patient age at 62, with 14% women.

In 2024, Dr. Hassler wrote 8,492 Medicare Part D claims for 326 patients. 68% of them were for generic drugs. CMS names the drug for 7,804 of them, across 160 drugs with 11 or more claims each, at $8,226,297 in total drug cost. In 2023, CMS named 7,183 claims across 150 drugs.

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

Dmand AI links 2 papers to Dr. Hassler, published from 2014 to 2015. Dr. Hassler's most frequent co-authors are Ian Frank, MD, Paul A. Goepfert, MD and Jack T. Stapleton, MD.

Dmand AI links Dr. Hassler to 9 clinical trials, 3 of them phase 3 studies. 1 is still active or recruiting. Conditions studied include Headache, Migraine Disorders and Gonorrhea. Eli Lilly and Company sponsors the most, 3. Open Payments lists research payments to Dr. Hassler that name 5 trials.

CMS Open Payments shows 2,197 general payments to Dr. Hassler from 42 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 66% of the total. ViiV Healthcare Company paid the most, $248,780. It also lists 45 research payments totaling $426,370 from 2016 to 2023, naming 5 clinical trials.

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

Dr. Hassler graduated from University of Miami, Miller School of Medicine in 1995.

Dr. Hassler is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 6. Check the plan with the practice before a visit.