Gregory Peters, CAC-AD
Gregory Peters, CAC-AD is an Addiction (Substance Use Disorder) Counselor in Cumberland, MD, registered under NPI 1003355074.
Getting there
Here is what surrounds this office in Cumberland, based on OpenStreetMap data collected Sep 20, 2026. Parking is available about 422 ft away.
Getting here and what is nearby
Parking 342 ft ~2 min
Parking 364 ft ~2 min
Parking 422 ft ~2 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 |
|---|---|---|
| AC0090 | MD | Addiction (Substance Use Disorder)… primary |
This provider holds licence AC0090 issued in MD. 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 | 1003355074 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 23, 2017 |
| Last updated | Feb 23, 2017 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | CAC-AD |
| Practice address |
10102 COUNTRY CLUB RD SE Cumberland, MD 21502 (301) 777-2290 Fax (301) 777-2160 |
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 | 3 | 5 | 5 | 0 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 5 | 1 | 0 | 5 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.