Gretchen L. Trenary, AGACNP-BC

Gretchen Trenary practices at Memorial Health University Medical Center in Savannah, Georgia, part of HCA Healthcare.

Gretchen Trenary's NPI, 1811552748, was assigned on May 6, 2019. Gretchen Trenary holds Georgia license APRN-NP246134.

Gretchen Trenary's primary practice is Memorial Health University Medical Center, at 4700 Waters Avenue, Savannah, GA 31404 in Chatham County. The practice phone is (912) 350-3691.

Gretchen Trenary's primary practice is Memorial Health University Medical Center in Savannah, Georgia, part of HCA Healthcare. The medical group on file is Zangmeister Cancer Center. Dmand AI also links Gretchen Trenary to 1 more medical group, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Gretchen Trenary practices. Vendor and product names are available with a free account.

Nurse practitioner is Gretchen Trenary's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Gretchen Trenary is licensed in Georgia.

CMS counts 224 Medicare patients who saw Gretchen Trenary in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Gretchen Trenary's median patient age at 71, with 64% women.

In 2024, Gretchen Trenary wrote 371 Medicare Part D claims for 147 patients. 84% of them were for generic drugs.

Gretchen Trenary accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 4 general payments to Gretchen Trenary from 4 drug and device companies in 2025. Food and beverage make up the largest share, 77% of the total. Merck Sharp & Dohme Corporation paid the most, $26.