CHERYL BROWN, M.D., APMC
CHERYL BROWN, M.D., APMC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1679751705, based in Madisonville, LA. It is classified under Nephrology Physician.
Getting there
The practice address on file is 397 HIGHWAY 21 STE 601, Madisonville, LA 70447. 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 |
|---|---|---|
| 022560 | LA | Nephrology Physician primary |
This provider holds licence 022560 issued in LA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 8820175722
- Enrollment ID
- O20080408000632
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group 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.
What Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
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 | 1679751705 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 31, 2008 |
| Last updated | Feb 4, 2026 |
| Status | Active |
| Practice address |
397 HIGHWAY 21 STE 601 Madisonville, LA 70447 (985) 845-9000 Fax (985) 845-9003 |
| Mailing address |
806 RIVERSIDE DR STE A Franklinton, LA 70438 |
| Other identifiers |
1483338
· Medicaid (LA) |
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 | 6 | 7 | 9 | 7 | 5 | 1 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 5 | 9 | 5 | 5 | 2 | 7 | 0 |
Sum = 65 · next multiple of 10 = 70 · 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.