Dr. James Zachary Porterfield, MD, PhD

Dr. Porterfield practices at Tampa General Hospital in Tampa, Florida, part of Tampa General Hospital.

Dr. Porterfield's NPI, 1508131640, was assigned on March 21, 2012. Dr. Porterfield graduated from OU College of Medicine in 2012. Dr. Porterfield holds Florida license ME164719.

Dr. Porterfield's primary practice is Tampa General Hospital, at 1 Tampa General Cir, Tampa, FL 33606 in Hillsborough County. The practice phone is (813) 844-7000.

Dr. Porterfield's primary practice is Tampa General Hospital in Tampa, Florida, part of Tampa General Hospital. The medical group on file is USF Therapy Services. Dmand AI also links Dr. Porterfield to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Porterfield practices, 2 sites in all. Vendor and product names are available with a free account.

Infectious disease is Dr. Porterfield's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Porterfield is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Porterfield's licenses on file in 3 states: Florida, Kentucky and Connecticut.

CMS data shows 61 Medicare services from Dr. Porterfield across 2 procedure codes in 2024, for 33 Medicare patients. Medicare paid $4,685 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 33 Medicare patients who saw Dr. Porterfield in 2024. The largest group is 65 to 74, with 15 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 4.19, 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. Porterfield's median patient age at 74, with 46% women.

In 2024, Dr. Porterfield wrote 11 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $35,098 in total drug cost.

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

Dmand AI links 31 papers to Dr. Porterfield, published from 2010 to 2025. 2019 was the busiest year, with 5. The most frequent topics are HIV Infections, COVID-19 and SARS-CoV-2. Dr. Porterfield has published most often in Front Immunol. Dr. Porterfield's most frequent co-authors are Julia Toman, MD, Sally Lynn Hodder, MD and William B. Hillegass, MD.

Dmand AI links Dr. Porterfield to 1 clinical trial. Conditions studied include COVID-19 and Pneumonia, Viral.

Dr. Porterfield graduated from OU College of Medicine in 2012.

Dr. Porterfield is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.