THUNDER BAY THERAPY & SPORTS MEDICINE
THUNDER BAY THERAPY & SPORTS MEDICINE is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003203605, based in Alpena, MI. It is classified under Occupational Medicine Clinic/Center.
Getting there
Here is what surrounds this office in Alpena, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 198 ft away.
Getting here and what is nearby
Parking 66 ft ~1 min
Parking 84 ft ~1 min
Parking 198 ft ~1 min
Gas station Shell 0.44 mi ~9 min
Convenience Long Rapids EZ Mart 0.45 mi ~10 min
Grocery Perch's IGA 0.49 mi ~10 min
1025 US Highway 23 North, Alpena 49707
Mo-Sa 07:00-21:00, Su 08:00-19:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 5201009050 | MI | Occupational Medicine Clinic/Center primary |
This provider holds licence 5201009050 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Occupational Medicine covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QX0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003203605 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 21, 2015 |
| Last updated | Apr 21, 2015 |
| Status | Active |
| Practice address |
348 LONG RAPIDS PLZ Alpena, MI 49707 (989) 358-8086 Fax (989) 354-2253 |
| Mailing address |
6511 OSAGE AVE Allen Park, MI 48101 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 0 | 3 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 6 | 6 | 0 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.