Michael Harper, MD
Michael Harper, MD is a Sports Medicine (Physical Medicine & Rehabilitation) Physician in Green Bay, WI, registered under NPI 1821529355. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2223 LIME KILN RD, Green Bay, WI 54311. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 71372 | WI | Sports Medicine (Physical Medicine &… primary |
| 71372 | WI | Physical Medicine & Rehabilitation… |
| 308613 | NY | Sports Medicine (Physical Medicine &… |
Licences are recorded in 2 states: WI, NY. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Physical Medicine And Rehabilitation
- PAC ID
- 0345675237
- Enrollment ID
- I20220721001574
Medicare enrolment is recorded as approved under the provider type Practitioner - Physical Medicine And Rehabilitation. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: New York and Wisconsin. The practice address on file is in Green Bay, WI, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 71372
- Specialty
- Sports Medicine (Physical Medicine &…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Sports Medicine covers
A physician who specializes in Sports Medicine is responsible for continuous care related to the enhancement of health and fitness as well as the prevention of injury and illness. The specialist possesses knowledge and experience in the promotion of wellness and the prevention of injury from many areas of medicine such as exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation, epidemiology, physical evaluation and injuries. It is the goal of a Sports Medicine specialist to improve the healthcare of the individual engaged in physical exercise. NUCC Health Care Provider Taxonomy, code 2081S0010X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2081S0010X | Sports Medicine (Physical Medicine & Rehabilitation) Physician Sports Medicine | 71372 | WI | primary |
| 208100000X | Physical Medicine & Rehabilitation Physician | 71372 | WI | |
| 2081S0010X | Sports Medicine (Physical Medicine & Rehabilitation) Physician Sports Medicine | 308613 | NY | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1821529355 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 26, 2017 |
| Last updated | Apr 22, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
2223 LIME KILN RD Green Bay, WI 54311 (920) 430-8113 |
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 | 8 | 2 | 1 | 5 | 2 | 9 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 1 | 2 | 9 | 3 | 1 |
Sum = 55 · next multiple of 10 = 60 · 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.