Matthew Lasslo
NPI 1003426545 · Counselor · Page, AZ
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Lasslo is a Counselor provider in Page, AZ (NPI 1003426545).
Provider details
- NPI number
- 1003426545
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- LAC-17209 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-08-07
- Last updated
- 2020-08-07
- Certified
- 2020-08-07
Frequently asked questions
- What is Matthew Lasslo's NPI number?
- Matthew Lasslo's National Provider Identifier (NPI) is 1003426545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Lasslo's specialty?
- Matthew Lasslo is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Matthew Lasslo located?
- Matthew Lasslo's practice location on file with NPPES is 463 S Lake Powell Blvd, Page, AZ 86040-0856.
- What is Matthew Lasslo's phone number?
- The practice phone number listed in the NPPES registry for Matthew Lasslo is (928) 645-5113.
- Does Matthew Lasslo accept Medicare?
- Matthew Lasslo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Lasslo's NPI active?
- Yes — Matthew Lasslo's NPI (1003426545) is active in the NPPES registry as of the last update on 2020-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.