Dr. David Phillip Terwilliger, DO

Dr. Terwilliger practices at Whitesburg ARH Hospital in Whitesburg, Kentucky, part of ARH.

Dr. Terwilliger's NPI, 1871801282, was assigned on September 20, 2010. Dr. Terwilliger holds Florida license OS12044.

Dr. Terwilliger's primary practice is Whitesburg ARH Hospital, at 240 Hospital Road, Whitesburg, KY 41858 in Letcher County. The practice phone is (606) 633-3500.

Dr. Terwilliger's primary practice is Whitesburg ARH Hospital in Whitesburg, Kentucky, part of ARH. The medical group on file is ARH Pennington Gap Clinic. Dmand AI also links Dr. Terwilliger to 1 more home health agency, 1 rural health 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. Terwilliger practices, 3 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Terwilliger's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Terwilliger is licensed in Florida.

CMS data shows 280 Medicare services from Dr. Terwilliger across 7 procedure codes in 2024, for 147 Medicare patients. Medicare paid $14,070 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 147 Medicare patients who saw Dr. Terwilliger in 2026. The largest group is 65 to 74, with 65 patients. 75% of them have high blood pressure, and 65% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Terwilliger's median patient age at 56, with 55% women.

In 2026, Dr. Terwilliger wrote 871 Medicare Part D claims for 212 patients. 93% of them were for generic drugs. CMS names the drug for 773 of them, across 9 drugs with 11 or more claims each, at $8,493 in total drug cost. In 2023, CMS named 591 claims across 7 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Terwilliger for performance year 2026, reported through an alternative payment model (APM). Dr. Terwilliger accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of colonoscopy by Dr. Terwilliger, more than 48% of the clinicians it reports for that procedure.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

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

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

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 9 general payments to Dr. Terwilliger from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Melinta Therapeutics, Inc. paid the most, $32.