Gregory Guice, MA
Gregory Guice, MA is a Mental Health Counselor in Detroit, MI, registered under NPI 1003047366. 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 Detroit, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 647 ft away. The nearest transit stop is 622 ft away, served by Dexter / Hazelwood (SB).
Getting here and what is nearby
Transit Dexter / Taylor (NB) 480 ft ~2 min
Parking 457 ft ~2 min
Restaurant A Eagles Coney Island 551 ft ~3 min
Transit Joy / Dexter (EB) 606 ft ~3 min
Parking 590 ft ~3 min
Transit Dexter / Hazelwood (SB) 622 ft ~3 min
Parking 647 ft ~3 min
Gas station Citgo 833 ft ~4 min
Convenience Citgo 897 ft ~4 min
Convenience Linwood Express 0.40 mi ~8 min
8929 Linwood Street, Detroit 48206
Gas station Valero 0.44 mi ~9 min
Convenience Valero 0.45 mi ~9 min
Restaurant Dexter Coney Island 0.50 mi ~10 min
9910 Dexter Avenue, Detroit 48206
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 Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
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 | 1003047366 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 5, 2009 |
| Last updated | Aug 5, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MA |
| Practice address |
1151 TAYLOR AVE. Detroit, MI 48202 (313) 874-8715 |
| Mailing address |
30702 CLUB HOUSE LANE AVE. Farmington Hills, MI 48334 |
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 | 0 | 4 | 7 | 3 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 4 | 5 | 3 | 3 |
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.