Matthew Lasslo
Matthew Lasslo is a Counselor in Page, AZ, registered under NPI 1003426545.
Getting there
Here is what surrounds this office in Page, based on OpenStreetMap data collected Sep 26, 2026. Parking is available about 0.35 mi away.
Getting here and what is nearby
Parking 629 ft ~3 min
Parking 808 ft ~4 min
Hotel 3 BR Home With A Sunset 0.24 mi ~5 min
Hotel Motel 6 Page 0.27 mi ~6 min
Hotel La Quinta Inn & Suites Page at Lake Powell 0.31 mi ~7 min
Parking 0.35 mi ~8 min
Restaurant Canyon King Pizzeria 0.48 mi ~10 min
Restaurant New York Teriyaki 0.49 mi ~10 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 |
|---|---|---|
| LAC-17209 | AZ | Counselor primary |
This provider holds licence LAC-17209 issued in AZ. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Mental Health Counselor
- PAC ID
- 9436501657
- Enrollment ID
- I20240123003140
Medicare enrolment is recorded as approved under the provider type Practitioner - Mental Health Counselor. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Counselor covers
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification. NUCC Health Care Provider Taxonomy, code 101Y00000X
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 | 1003426545 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 7, 2020 |
| Last updated | Aug 7, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
463 S LAKE POWELL BLVD Page, AZ 86040 (928) 645-5113 Fax (928) 645-3254 |
| Mailing address |
PO BOX 790 Page, AZ 86040 |
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 | 4 | 2 | 6 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 2 | 3 | 5 | 8 |
Sum = 55 · next multiple of 10 = 60 · 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.