Quick answers
- Where does John Frink see patients?
- Medicare's clinician data lists 3 practice locations, including Saint Paul, MN, Duluth, MN and Woodland, CA. Call before your visit to confirm the address.
- What is John Frink's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does John Frink accept Medicare assignment?
- Medicare's clinician data says John Frink may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is John Frink's NPI number?
- 1427363076. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John Frink is enrolled with Medicare (CMS data updated 2026-10-02).
- 2550 University Ave W, Suite 435sSaint Paul, MN 55114
- 4628 Mike Colalillo DrDuluth, MN 55807
- 505 Placer DrWoodland, CA 95695
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Saint Paul
Clinicians with the same Medicare primary specialty in Saint Paul, MN — not a recommendation.
Clinician information
| Graduation year | 2026 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1427363076 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians