Heith Gray
Heith Gray is an Addiction (Substance Use Disorder) Counselor in Portsmouth, OH, registered under NPI 1003515685. This provider registers 2 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
Here is what surrounds this office in Portsmouth, based on OpenStreetMap data collected Oct 2, 2026. Parking is available about 287 ft away. There is EV charging 0.27 mi from the office (ChargePoint) — useful if you are driving in from out of town. A pharmacy sits 0.45 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Parking 217 ft ~1 min
Parking 244 ft ~1 min
Parking 287 ft ~2 min
Coffee Market Street Cafe 721 ft ~3 min
Restaurant Whit's Frozen Custard 719 ft ~3 min
Restaurant Patties & Pints 769 ft ~3 min
Gas station Thompson's Petroleum Services 826 ft ~4 min
Convenience Buster's - Hicks 899 ft ~4 min
Gas station Sunoco 890 ft ~4 min
Hotel Holiday Inn - Portsmouth 1,021 ft ~4 min
Pharmacy Smith Discount Pharmacy 0.23 mi ~5 min
EV charging ChargePoint 0.27 mi ~6 min
Coffee Lofts Coffee Company & Roastery 0.33 mi ~7 min
Grocery Kroger 0.34 mi ~7 min
811 Gay Street, Portsmouth 45662
Mo-Su 06:00-23:00
Coffee Starbucks 0.36 mi ~8 min
Pharmacy Staker's Drug 0.36 mi ~8 min
Gas station Kroger 0.41 mi ~9 min
Restaurant Domino's 0.44 mi ~9 min
822 Gay Street, Portsmouth 45662
Mo-Th 10:00-24:00; Fr-Sa 10:00-01:00; Su 10:00-24:00
Pharmacy CVS Pharmacy 0.45 mi ~10 min
Convenience JJ's Convenient Mart 0.50 mi ~11 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 |
|---|---|---|
| CDCA.183912 | OH | Addiction (Substance Use Disorder)… primary |
| QMHS | OH | Mental Health Clinic/Center (Including… |
This provider holds licence CDCA.183912 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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | CDCA.183912 | OH | primary |
| 261QM0801X | Mental Health Clinic/Center (Including Community Mental Health Center) Mental Health (Including Community Mental Health Center) | QMHS | OH |
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 | 1003515685 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 2, 2023 |
| Last updated | Apr 10, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
411 COURT ST Portsmouth, OH 45662 (740) 354-6685 |
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 | 5 | 1 | 5 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 1 | 6 | 7 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.