John Castleberry, CDCA
John Castleberry, CDCA is an Addiction (Substance Use Disorder) Counselor in Cincinnati, OH, registered under NPI 1003674888. 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 Cincinnati, based on OpenStreetMap data collected Oct 13, 2026. Parking is available about 0.24 mi away. The nearest transit stop is 0.42 mi away, served by Linwood Ave & Rennel Dr. A pharmacy sits 0.32 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Parking 884 ft ~4 min
Parking 0.22 mi ~5 min
Parking 0.24 mi ~5 min
Pharmacy CVS Pharmacy 0.32 mi ~7 min
Restaurant Mount Lookout Tavern 0.33 mi ~7 min
3209 Linwood Avenue, Cincinnati 45226
Mo-Su 11:00-02:30
Transit Mt Lookout Sq - Linwood Ave & Delta 0.34 mi ~7 min
Coffee Lookout Joe: Mt. Lookout Coffee Roasters 0.35 mi ~7 min
3181 Linwood Avenue, Cincinnati 45208
Mo-Fr 06:30-22:00; Sa-Su 07:00-20:00
Restaurant Guardia 0.35 mi ~7 min
Restaurant Muse in Mount Lookout 0.35 mi ~7 min
1000 Delta Avenue, Cincinnati 45208
Mo 12:00-15:00,17:00-21:00; We-Fr 17:00-21:00; Sa 10:00-15:00,17:00-21:00; Su 10:00-15:00
Gas station UDF Fuel 0.37 mi ~8 min
Convenience United Dairy Farmers 0.39 mi ~8 min
Transit Linwood Ave & Ellison Ave 0.40 mi ~8 min
Transit Linwood Ave & Rennel Dr 0.42 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 187164 | OH | Addiction (Substance Use Disorder)… primary |
This provider holds licence 187164 issued in OH. 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | 1003674888 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 7, 2024 |
| Last updated | Mar 7, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | CDCA |
| Practice address |
2880 ALPINE TER Cincinnati, OH 45208 (513) 240-1163 |
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 | 7 | 4 | 8 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 8 | 8 | 7 |
Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8
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.