Dr. Marissa L Tarantino Steele, MD

Dr. Steele practices at Sharp Grossmont Surgery Center in La Mesa, California.

Dr. Steele's NPI, 1386871721, was assigned on June 12, 2009. Dr. Steele graduated from Keck School of Medicine of USC in 2007. Dr. Steele holds California license A108297.

Dr. Steele's primary practice is Sharp Grossmont Surgery Center, at 8881 Fletcher Parkway, Suite 100, La Mesa, CA 91942. The practice phone is (619) 698-0930.

Dr. Steele's primary practice is Sharp Grossmont Surgery Center in La Mesa, California. Dr. Steele is also affiliated with Sharp Grossmont Hospital. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Steele to 1 more hospital, 2 medical groups and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Steele practices, 4 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Steele's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Steele is board certified in internal medicine by the American Board of Internal Medicine. Dr. Steele is licensed in California.

Dmand AI lists mini-stroke (TIA) and sepsis among the conditions Dr. Steele treats.

CMS data shows 254 Medicare services from Dr. Steele across 3 procedure codes in 2024, for 229 Medicare patients. Medicare paid $31,874 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 229 Medicare patients who saw Dr. Steele in 2024. The largest group is 65 to 74, with 78 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 61% are also on Medicaid. Their average risk score is 2.80, 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. Steele's median patient age at 67, with 58% women.

In 2024, Dr. Steele wrote 194 Medicare Part D claims for 75 patients. 88% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $106 in total drug cost.

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

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

CMS Open Payments shows 27 general payments to Dr. Steele from 13 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $128.

Dr. Steele graduated from Keck School of Medicine of USC in 2007.

Dr. Steele is in network with 16 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.