Billy Davis, DO
Billy Davis, DO is an Addiction Medicine (Family Medicine) Physician in Jackson, TN, registered under NPI 1225484561. 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 37 SANDSTONE CIR STE 92A, Jackson, TN 38305. 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 |
|---|---|---|
| 3905 | TN | Addiction Medicine (Family Medicine)… primary |
This provider holds licence 3905 issued in TN. 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 - Family Practice
- PAC ID
- 3870992050
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Tennessee | I20210519002466 | Practitioner - Family Practice |
| Mississippi | I20210702001229 | Practitioner - Family Practice |
| Alabama | I20211014000707 | Practitioner - Family Practice |
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. There are 3 separate enrolment records across 3 states (TN, MS, AL). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Addiction Medicine covers
A family medicine physician who specializes in the diagnosis and treatment of addictions. NUCC Health Care Provider Taxonomy, code 207QA0401X
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 | |
|---|---|---|---|---|
| 207QA0401X | Addiction Medicine (Family Medicine) Physician Addiction Medicine | 3905 | TN | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | KY |
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 | 1225484561 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 5, 2016 |
| Last updated | Jun 1, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | DO |
| Practice address |
37 SANDSTONE CIR STE 92A Jackson, TN 38305 (731) 265-6025 |
| Mailing address |
1000 URBAN CENTER DR STE 600 Vestavia, AL 35242 |
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 | 2 | 2 | 5 | 4 | 8 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 4 | 5 | 8 | 8 | 8 | 5 | 3 |
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.