Ryan Hays, MD
Ryan Hays, MD is an Epilepsy Physician in Dallas, TX, registered under NPI 1871756809. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 5323 HARRY HINES BLVD, Dallas, TX 75390. 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 |
|---|---|---|
| N9453 | TX | Neurology Physician |
| N9453 | TX | Clinical Neurophysiology Physician |
| N9453 | TX | Sleep Medicine (Psychiatry & Neurology)… |
| N9453 | TX | Epilepsy Physician primary |
This provider holds licence N9453 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
- 5193996858
- Enrollment ID
- I20110929000311
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. 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 Epilepsy covers
Epilepsy is a subspecialty of neurology focused on the diagnosis and treatment of patients with epilepsy, including new-onset, medically refractory epilepsy, psychogenic nonepileptic seizures, and epilepsy in special populations (the elderly, women, patients with co-morbidities). Epilepsy is a multidisciplinary field that provides comprehensive care of the patient.<br/> NUCC Health Care Provider Taxonomy, code 2084E0001X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician Neurology | N9453 | TX | |
| 2084N0600X | Clinical Neurophysiology Physician Clinical Neurophysiology | N9453 | TX | |
| 2084S0012X | Sleep Medicine (Psychiatry & Neurology) Physician Sleep Medicine | N9453 | TX | |
| 2084E0001X | Epilepsy Physician Epilepsy | N9453 | TX | primary |
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 | 1871756809 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 9, 2008 |
| Last updated | Nov 15, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
5323 HARRY HINES BLVD Dallas, TX 75390 (214) 645-8800 |
| Mailing address |
PO BOX 845347 Dallas, TX 75284 |
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 | 8 | 7 | 1 | 7 | 5 | 6 | 8 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 5 | 1 | 5 | 5 | 3 | 8 | 0 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.