Sheldon Johnson, M.D.
Sheldon Johnson, M.D. is a Therapeutic Radiology Physician in Baton Rouge, LA, registered under NPI 1568554871. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 4950 ESSEN LANE, Baton Rouge, LA 70809. 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 |
|---|---|---|
| 04300R | LA | Therapeutic Radiology Physician primary |
| 04300R | LA | Radiation Oncology Physician |
This provider holds licence 04300R 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
- Practitioner - Radiation Oncology
- PAC ID
- 4789762790
- Enrollment ID
- I20080416000292
Medicare enrolment is recorded as approved under the provider type Practitioner - Radiation Oncology. 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 Therapeutic Radiology covers
Therapeutic Radiology certificate name was changed to Radiation Oncology. Use Radiation Oncology. NUCC Health Care Provider Taxonomy, code 2085R0203X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2085R0203X | Therapeutic Radiology Physician Therapeutic Radiology | 04300R | LA | primary |
| 2085R0001X | Radiation Oncology Physician Radiation Oncology | 04300R | LA |
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 | 1568554871 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 28, 2006 |
| Last updated | Dec 21, 2009 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
4950 ESSEN LANE Baton Rouge, LA 70809 (225) 767-0847 Fax (225) 766-1417 |
| Other identifiers |
1313459
· 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 | 5 | 6 | 8 | 5 | 5 | 4 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 3 | 8 | 1 | 5 | 8 | 8 | 5 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.