Bret Bellard, M.D.
Bret Bellard, M.D. is an Addiction Medicine (Family Medicine) Physician in West Lake Hills, TX, registered under NPI 1538225776. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 5524 BEE CAVES RD STE H2, West Lake Hills, TX 78746. 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 |
|---|---|---|
| K4632 | TX | Addiction Medicine (Family Medicine)… primary |
| 10620 | NV | Addiction Medicine (Internal Medicine)… |
| 10620 | NV | Family Medicine Physician |
Licences are recorded in 2 states: TX, NV. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Family Practice
- PAC ID
- 0345242905
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Nevada | I20070209000648 | Practitioner - Family Practice |
| Texas | I20230315000116 | Practitioner - Addiction Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. There are 2 separate enrolment records across 2 states (NV, TX). 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.
Licensed in 2 states
This provider holds licences in 2 states: Nevada and Texas. The practice address on file is in West Lake Hills, TX, 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
- K4632
- Specialty
- Addiction Medicine (Family 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 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 3 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 | K4632 | TX | primary |
| 207RA0401X | Addiction Medicine (Internal Medicine) Physician Addiction Medicine | 10620 | NV | |
| 207Q00000X | Family Medicine Physician | 10620 | NV |
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 | 1538225776 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 30, 2006 |
| Last updated | Dec 29, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | M.D. |
| Practice address |
5524 BEE CAVES RD STE H2 West Lake Hills, TX 78746 (512) 710-0551 Fax (512) 717-6337 |
| Mailing address |
PO BOX 3041 Marble Falls, TX 78654 |
| Other identifiers |
038413303
· Medicaid (TX) 11997161 · Other 1538225776 · Medicaid (NV) 38413304 · Medicaid (TX) 38413305 · Medicaid (TX) |
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 | 3 | 8 | 2 | 2 | 5 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 6 | 8 | 4 | 2 | 1 | 7 | 5 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.