Dr. Gregory M. McCarthy, MD

Dr. McCarthy practices at St. Joseph Hospital in Nashua, New Hampshire, part of Covenant Health.

Dr. McCarthy's NPI, 1942393525, was assigned on October 2, 2006. Dr. McCarthy holds New Hampshire license 7256.

Dr. McCarthy's primary practice is St. Joseph Hospital, at 172 Kinsley St, Nashua, NH 03060 in Hillsborough County. The practice phone is (603) 882-3000.

Dr. McCarthy's primary practice is St. Joseph Hospital in Nashua, New Hampshire, part of Covenant Health. Dr. McCarthy is also affiliated with Elliot Hospital. The medical group on file is Dartmouth Hitchcock Clinics Manchester. Dmand AI also links Dr. McCarthy to 1 more hospital, 2 group practices and clinics, 2 medical groups and 1 breast imaging center, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McCarthy practices, 6 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. McCarthy's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. McCarthy's licenses on file in 2 states: New Hampshire and Colorado.

CMS data shows 342 Medicare services from Dr. McCarthy across 9 procedure codes in 2024, for 309 Medicare patients. Medicare paid $45,068 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 309 Medicare patients who saw Dr. McCarthy in 2024. The largest group is 65 to 74, with 154 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. McCarthy's median patient age at 57, with 49% women.

In 2024, Dr. McCarthy wrote 38 Medicare Part D claims for 35 patients. 71% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $381 in total drug cost. In 2023, CMS named 60 claims across 2 drugs.

Dr. McCarthy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 119 procedures of colonoscopy by Dr. McCarthy, more than 84% of the clinicians it reports for that procedure.

CMS Open Payments shows 4 general payments to Dr. McCarthy from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $46.