Dr. Todd David Merchen, MD

Dr. Merchen practices at Prisma Health Greenville Memorial Hospital in Greenville, South Carolina, part of Prisma Health.

Dr. Merchen's NPI, 1730135252, was assigned on May 26, 2006. Dr. Merchen graduated from Mercer University School of Medicine in 1997. Dr. Merchen holds South Carolina license 85586.

Dr. Merchen's primary practice is Prisma Health Greenville Memorial Hospital, at 701 Grove Road, Greenville, SC 29605 in Greenville County. The practice phone is (864) 455-7000.

Dr. Merchen's primary practice is Prisma Health Greenville Memorial Hospital in Greenville, South Carolina, part of Prisma Health. Dr. Merchen is also affiliated with Prisma Health Greer Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Merchen to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

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

Transplant surgery is Dr. Merchen's primary specialty in the NPI Registry, under taxonomy code 204F00000X. Dmand AI has Dr. Merchen's licenses on file in 2 states: South Carolina and Washington.

CMS data shows 79 Medicare services from Dr. Merchen across 2 procedure codes in 2024, for 38 Medicare patients. Medicare paid $6,704 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 38 Medicare patients who saw Dr. Merchen in 2024. The largest group is under 65, with 19 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. Their average risk score is 9.70, 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. Merchen's median patient age at 56, with 43% women.

In 2024, Dr. Merchen wrote 95 Medicare Part D claims for 28 patients. 71% of them were for generic drugs. CMS names the drug for 40 of them, across 3 drugs with 11 or more claims each, at $926 in total drug cost. In 2022, CMS named 23 claims across 2 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Merchen for performance year 2024, reported as part of a group. Dr. Merchen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

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

Dmand AI links 9 papers to Dr. Merchen, published from 2014 to 2021. 2017 was the busiest year, with 3. The most frequent topics are Graft Rejection, Kidney Transplantation and Swine. Dr. Merchen has published most often in Transpl Immunol. Dr. Merchen's most frequent co-authors are Edward J. Kruse, DO, Norris Stanley Nahman, MD and David Lawrence Bartlett, MD.

CMS Open Payments shows 24 general payments to Dr. Merchen from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Veloxis Pharmaceuticals, Inc. paid the most, $308.

Dr. Merchen graduated from Mercer University School of Medicine in 1997.