F. Thomas Day, M.D., Pllc
F. Thomas Day, M.D., Pllc is a healthcare organization registered as Surgery Physician in Charlevoix, MI, holding Type 2 (organization) NPI 1639102445 since 2006. The authorized official on file is F. Day, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1639102445 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | F. Thomas Day, M.D., Pllc |
| Practice address | 12162 COUNTRY CLUB DR, Charlevoix, MI, 49720 |
| Phone | 2315471255 |
| Enumeration date | 2006-07-08 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | F. Day |
|---|---|
| Title | Owner |
| Phone | 2315471255 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 4301043812 | MI |
Copy-ready billing details
Provider: F. Thomas Day, M.D., Pllc NPI: 1639102445 Taxonomy: 208600000X (Surgery Physician) Address: 12162 COUNTRY CLUB DR, Charlevoix, MI, 49720
Verify this record
Cross-check NPI 1639102445 against the authoritative CMS record: view F. Thomas Day, M.D., Pllc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is F. Thomas Day, M.D., Pllc?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.