NPPES file of Aug 9, 2026

Matthew Aaron Lasslo

Counselor · Page, AZ

Matthew Aaron Lasslo is a counselor with a practice address in Page, Arizona, and NPI 1003426545, issued on Aug 7, 2020. Check the license (Arizona LAC-17209, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003426545
Name
Matthew Aaron Lasslo
Primary taxonomy
Counselor 101Y00000X
License number
LAC-17209 AZ
Self-reported in NPPES; status is on the state search
Practice location
463 S Lake Powell Blvd, Page, AZ 86040
Phone
(928) 645-5113
Enumerated
Aug 7, 2020
Record last updated
Aug 7, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(928) 645-3254
Medicare enrollment
Enrolled (PECOS I20240123003140); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest counselor records → All 1,161 in Arizona → Look up another NPI →

Also registered at 463 S Lake Powell Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ralph Chester, M.D.Psychiatry Physician1467415620
  2. Michael Demangone, MDFamily Medicine Physician1841294378
  3. Suzanne Diaz, LCSWClinical Social Worker1609626449
  4. Maureen Guilfoyle, LICSWClinical Social Worker1407875693
  5. Michael Moore, D.C.Chiropractor1851456487
  6. Scott Sadler, P.A.-CSurgical Physician Assistant1386612265

Verify Matthew Aaron Lasslo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license LAC-17209    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Creek Valley Health ClinicColorado City, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew Aaron Lasslo among 1,161 counselor records in Arizona

Matthew Aaron Lasslo is one of 1,161 counselor records with a practice address in Arizona. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 45% of them.

  • NPI issued2020 · 45% of these records are older, 49% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 5% of these records are
  • Graduated2016 · median 2015 among the 63 with a school on file
  • Record last updated2020 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101Y00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Counselor providers in Arizona

There are 1,161 counselor records in Arizona.

All 1,161 in Arizona → Every provider in Page → Counselor nationwide →

The 8 counselor records with the nearest ZIP codes

  1. Chelsey Parrie, M.S., LPC-189, N.C.CMarble Canyon, AZ 860361265430367
  2. Elsie Elthie, CNATuba City, AZ 860451609037019
  3. Robert Farrell, M.ED.,NCCWilliams, AZ 860461912145657
  4. Jill Lewis, M.A. LAC, GUIDANCEJoseph City, AZ 860321770701633
  5. Randolph Hollingsworth, LPC/:ISACHolbrook, AZ 860251285871855
  6. Lisa Shows, MS, LPCFlagstaff, AZ 860111548625841
  7. Lorraine AchesonFlagstaff, AZ 860041639318702
  8. Thelma GomezFlagstaff, AZ 860041942427315

Common questions

What is Matthew Aaron Lasslo's NPI number?

Matthew Aaron Lasslo's National Provider Identifier (NPI) is 1003426545, issued on Aug 7, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Aaron Lasslo located?

The NPPES record lists a practice address at 463 S Lake Powell Blvd, Page, AZ, 86040. Phone: (928) 645-5113. Providers update this record themselves, so call before visiting.

How can I verify Matthew Aaron Lasslo's license?

NPPES lists Arizona license number LAC-17209, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.