Dr. Stacey N. Massignan, MD

Dr. Massignan practices at UCSF St Mary's Hospital in San Francisco, California.

Dr. Massignan's NPI, 1801155056, was assigned on May 9, 2012. Dr. Massignan graduated from Stony Brook University Health Sciences Center School of Medicine in 2012. Dr. Massignan holds California license 136835.

Dr. Massignan's primary practice is UCSF St Mary's Hospital, at 450 Stanyan St, San Francisco, CA 94117 in San Francisco County. The practice phone is (415) 353-4739.

Dr. Massignan's primary practice is UCSF St Mary's Hospital in San Francisco, California. Dr. Massignan is also affiliated with UCSF Health Stanyan Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Massignan 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. Massignan practices, 3 sites in all. Vendor and product names are available with a free account.

Emergency medicine is Dr. Massignan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Massignan is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Massignan is licensed in California.

CMS data shows 824 Medicare services from Dr. Massignan across 6 procedure codes in 2024, for 627 Medicare patients. Medicare paid $83,449 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 627 Medicare patients who saw Dr. Massignan in 2024. The largest group is 75 to 84, with 208 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.07, 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. Massignan's median patient age at 57, with 49% women.

In 2024, Dr. Massignan wrote 156 Medicare Part D claims for 131 patients. 90% of them were for generic drugs. CMS names the drug for 57 of them, across 3 drugs with 11 or more claims each, at $405 in total drug cost. In 2023, CMS named 55 claims across 3 drugs.

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

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 5 general payments to Dr. Massignan from 4 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $316.

Dr. Massignan graduated from Stony Brook University Health Sciences Center School of Medicine in 2012.

Dr. Massignan is in network with 7 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.