Quick answers
- Where does William M. Finn see patients?
- Medicare's clinician data lists 2 practice locations, including Ignacio, CO. Call before your visit to confirm the address.
- What is William M. Finn's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William M. Finn accept Medicare assignment?
- Yes. Medicare's clinician data says William M. Finn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is William M. Finn's NPI number?
- 1982616470. 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 William M. Finn is enrolled with Medicare (CMS data updated 2026-10-02).
- PO BoxIgnacio, CO 81137
- PO Box, Suite 899Ignacio, CO 81137
Group practices
Medicare enrollment lists William M. Finn as a member of this group (CMS data updated 2026-10-02).
- Southern Ute Indian Tribe13 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Colorado
Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982616470 |
| 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