Dr. Maria Isabel Villegas Kastner, MD

Dr. Villegas Kastner practices at UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System.

Dr. Villegas Kastner's NPI, 1154859429, was assigned on May 31, 2017. Dr. Villegas Kastner holds North Carolina license 2022-02410.

Dr. Villegas Kastner's primary practice is UNC Hospitals, at 101 Manning Drive, Chapel Hill, NC 27514 in Orange County. The practice phone is (919) 966-4141.

Dr. Villegas Kastner's primary practice is UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System. Dr. Villegas Kastner is also affiliated with UNC Health Chatham. The medical group on file is UNC Faculty Physicians. Dmand AI also links Dr. Villegas Kastner to 1 more hospital, 1 therapy and rehab 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. Villegas Kastner practices, 4 sites in all. Vendor and product names are available with a free account.

Nephrology is Dr. Villegas Kastner's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Villegas Kastner is licensed in North Carolina.

CMS data shows 631 Medicare services from Dr. Villegas Kastner across 10 procedure codes in 2024, for 163 Medicare patients. Medicare paid $64,755 for them. Every service was in an office.

CMS counts 163 Medicare patients who saw Dr. Villegas Kastner in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 17% are also on Medicaid. Their average risk score is 3.35, 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. Villegas Kastner's median patient age at 74, with 57% women.

In 2024, Dr. Villegas Kastner wrote 1,230 Medicare Part D claims for 224 patients. 88% of them were for generic drugs. CMS names the drug for 998 of them, across 26 drugs with 11 or more claims each, at $110,382 in total drug cost. In 2023, CMS named 541 claims across 18 drugs.

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

CMS Open Payments shows 56 general payments to Dr. Villegas Kastner from 16 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $237.