Katherine Holdwick, FNP-C

Katherine Holdwick practices at Physician Healthcare Network in Fort Gratiot, Michigan.

Katherine Holdwick's NPI, 1912400136, was assigned on March 14, 2018. Katherine Holdwick holds Michigan license 4704273604.

Katherine Holdwick's primary practice is Physician Healthcare Network, at 3050 Commerce Dr, Fort Gratiot, MI 48059 in Saint Clair County. The practice phone is (810) 364-4000.

Katherine Holdwick's primary practice is Physician Healthcare Network in Fort Gratiot, Michigan. Katherine Holdwick is also affiliated with McLaren Macomb. The medical group on file is Physician HealthCare Network. Dmand AI also links Katherine Holdwick to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Holdwick practices, 2 sites in all. Vendor and product names are available with a free account.

Family is Katherine Holdwick's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Katherine Holdwick is licensed in Michigan.

CMS counts 134 Medicare patients who saw Katherine Holdwick in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Katherine Holdwick's median patient age at 39, with 59% women.

In 2024, Katherine Holdwick wrote 441 Medicare Part D claims for 204 patients. 90% of them were for generic drugs.

Katherine Holdwick accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 11 general payments to Katherine Holdwick from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $60.