John Sladky, M.D.
John Sladky, M.D. is a Neuromuscular Medicine (Psychiatry & Neurology) Physician in San Antonio, TX, registered under NPI 1215905252.
Getting there
The practice address on file is 3551 ROGER BROOKE DR BROOKE ARMY MEDICAL CENTER DEPT OF NEUROLOGY, San Antonio, TX 78234. 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 |
|---|---|---|
| M6885 | TX | Neuromuscular Medicine (Psychiatry &… primary |
This provider holds licence M6885 issued in TX. 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 - Neurology
- PAC ID
- 7810053774
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Texas | I20090302000691 | Practitioner - Neurology |
| Wisconsin | I20161222000317 | Practitioner - Neurology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. There are 2 separate enrolment records across 2 states (TX, WI). 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 Neuromuscular Medicine covers
A neurologist or child neurologist who specializes in the diagnosis and management of disorders of nerve, muscle or neuromuscular junction, including amyotrophic lateral sclerosis, peripheral neuropathies (e.g., diabetic and immune mediated neuropathies), various muscular dystrophies, congenital and acquired myopathies, inflammatory myopathies (e.g., polymyositis, inclusion body myositis) and neuromuscular transmission disorders (e.g., myasthenia gravis, Lambert-Eaton myasthenic syndrome). NUCC Health Care Provider Taxonomy, code 2084N0008X
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 | 1215905252 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 8, 2006 |
| Last updated | Jun 6, 2013 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
3551 ROGER BROOKE DR BROOKE ARMY MEDICAL CENTER DEPT OF NEUROLOGY San Antonio, TX 78234 (210) 916-2203 Fax (210) 916-3833 |
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 | 1 | 5 | 9 | 0 | 5 | 2 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 2 | 5 | 9 | 0 | 1 | 2 | 1 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.