Dr. Sarah Z. Hassan, MD

Dr. Hassan practices at MemorialCare Orange Coast Medical Center in Fountain Valley, California.

Dr. Hassan's NPI, 1689935066, was assigned on June 2, 2012. Dr. Hassan graduated from Mercy College in 2015. Dr. Hassan holds California license A156103.

Dr. Hassan's primary practice is MemorialCare Orange Coast Medical Center, at 18111 Brookhurst St, Fountain Valley, CA 92708 in Orange County. The practice phone is (714) 378-7000.

Dr. Hassan's primary practice is MemorialCare Orange Coast Medical Center in Fountain Valley, California. Dr. Hassan is also affiliated with Orange Coast Medical Center. The medical group on file is MemorialCare Medical Group. Dmand AI also links Dr. Hassan to 2 more hospitals, 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. Hassan practices, 5 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Hassan's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Hassan is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Hassan's licenses on file in 2 states: California and Ohio.

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

CMS data shows 2,979 Medicare services from Dr. Hassan across 10 procedure codes in 2024, for 201 Medicare patients. Medicare paid $81,592 for them. Every service was in an office.

CMS counts 201 Medicare patients who saw Dr. Hassan in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hassan's median patient age at 71, with 80% women.

In 2024, Dr. Hassan wrote 762 Medicare Part D claims for 241 patients. 84% of them were for generic drugs. CMS names the drug for 572 of them, across 14 drugs with 11 or more claims each, at $275,309 in total drug cost. In 2023, CMS named 825 claims across 14 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Hassan for performance year 2024, reported as part of a group. Dr. Hassan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hassan as offering telehealth.

Dmand AI links 4 papers to Dr. Hassan, published from 2012 to 2018. The most frequent topics are Islets of Langerhans. Dr. Hassan's most frequent co-authors are Enrico Benedetti, MD, Hoonbae Jeon, MD and Hyojin Jeon, MD.

CMS Open Payments shows 245 general payments to Dr. Hassan from 51 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, $766.

Dr. Hassan graduated from Mercy College in 2015.

Dr. Hassan is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.