William Worthington
William Worthington is a Peer Specialist in Oklahoma City, OK, registered under NPI 1003635616. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Oklahoma City, based on OpenStreetMap data collected Oct 11, 2026. Parking is available about 519 ft away. A pharmacy sits 0.21 mi from the entrance (Homeland), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 78 ft ~1 min
Parking 156 ft ~1 min
Parking 519 ft ~2 min
Gas station Phillips 66 Taylor Made Auto Repair 821 ft ~4 min
Gas station Classen Star 845 ft ~4 min
Restaurant Braum's 933 ft ~4 min
Pharmacy Homeland 0.21 mi ~5 min
Grocery Homeland 0.21 mi ~5 min
Convenience 7-Eleven 0.37 mi ~8 min
Gas station 7-Eleven 0.37 mi ~8 min
Hotel The Grandison at Maney Park 0.39 mi ~8 min
Restaurant Gorõ Ramen 0.48 mi ~10 min
1634 North Blackwelder Avenue, Oklahoma City 73106
Mo-Sa 11:00-00:00; Su 11:00-22:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Peer Specialist covers
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority. NUCC Health Care Provider Taxonomy, code 175T00000X
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 | 1003635616 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 9, 2024 |
| Last updated | Oct 9, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
1501 N CLASSEN BLVD Oklahoma City, OK 73106 (405) 235-5671 |
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 | 0 | 0 | 3 | 6 | 3 | 5 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 3 | 1 | 6 | 2 |
Sum = 44 · next multiple of 10 = 50 · 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.