Carl Childress, O.D.
Carl Childress, O.D. is a provider specialising in Sports Vision Optometrist in Longview, TX, registered under NPI 1801902606. This provider registers 5 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 408 E MAGRILL ST, Longview, TX 75601. 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 |
|---|---|---|
| 1892 | TX | Sports Vision Optometrist primary |
| 1892 | TX | Corneal and Contact Management Optometrist |
| 1892 | TX | Low Vision Rehabilitation Optometrist |
| 1892 | TX | Pediatric Optometrist |
| 1892 | TX | Vision Therapy Optometrist |
This provider holds licence 1892 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Sports Vision covers
An optometrist who offers services designed to care for unique vision care needs of athletes, which may include one of more of the following services: corrective vision care unique to a specific sporting environment; protective eyewear for the prevention of sports-related injuries; vision enhancement - which may include vision therapy and techniques to improve visual skills specific to the athlete's sport. NUCC Health Care Provider Taxonomy, code 152WS0006X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 152WS0006X | Sports Vision Optometrist Sports Vision | 1892 | TX | primary |
| 152WC0802X | Corneal and Contact Management Optometrist Corneal and Contact Management | 1892 | TX | |
| 152WL0500X | Low Vision Rehabilitation Optometrist Low Vision Rehabilitation | 1892 | TX | |
| 152WP0200X | Pediatric Optometrist Pediatrics | 1892 | TX | |
| 152WV0400X | Vision Therapy Optometrist Vision Therapy | 1892 | TX |
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 | 1801902606 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 22, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | O.D. |
| Practice address |
408 E MAGRILL ST Longview, TX 75601 (903) 753-4436 Fax (903) 757-4400 |
| Mailing address |
408 MAGRILL STREET Longview, TX 75601 |
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 | 0 | 1 | 9 | 0 | 2 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 9 | 0 | 4 | 6 | 0 |
Sum = 54 · next multiple of 10 = 60 · 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.