Reese Cooper, DO
Reese Cooper, DO is a General Practice Physician in O Fallon, IL, registered under NPI 1831691948. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 3 SAINT ELIZABETH BLVD STE 4000, O Fallon, IL 62269. 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 |
|---|---|---|
| 3002 | NE | General Practice Physician primary |
| 7811204-2402 | UT | Physical Therapist |
Licences are recorded in 2 states: NE, UT. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Order And Referring Only - Family Practice
- PAC ID
- 4981133675
- Enrollment ID
- I20250124002122
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Family Practice. 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: Nebraska and Utah. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care 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 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 General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
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 | |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | 3002 | NE | primary |
| 171000000X | Military Health Care Provider | — | — | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 225100000X | Physical Therapist | 7811204-2402 | UT |
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 | 1831691948 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 5, 2018 |
| Last updated | Jan 14, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | DO |
| Practice address |
3 SAINT ELIZABETH BLVD STE 4000 O Fallon, IL 62269 (618) 256-9355 Fax (618) 206-2332 |
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 | 3 | 1 | 6 | 9 | 1 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 6 | 1 | 3 | 9 | 2 | 9 | 8 |
Sum = 72 · next multiple of 10 = 80 · check digit = 8 · actual last digit = 8
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.