NPPES file of Aug 9, 2026

Larissa Quadracci Mattei, PA-C

Surgical Physician Assistant · Issaquah, WA

Larissa Quadracci Mattei, PA-C is a surgical physician assistant with a practice address in Issaquah, Washington, and NPI 1033653142, issued on Dec 7, 2016. Check the license (Washington PA60715586, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033653142
Name
Larissa Quadracci Mattei
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA60715586 WA
Self-reported in NPPES; status is on the state search
Practice location
510 8TH Ave NE Ste 200, Issaquah, WA 98029
Phone
(253) 392-3030
Enumerated
Dec 7, 2016
Record last updated
May 13, 2024
Fax
(425) 392-2564
Medicaid ID
2078341 WA
Medicare enrollment
Enrolled (PECOS I20170123000932); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 510 8TH Ave NE Ste 200

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

  1. Alexander Arzeno, MDOrthopaedic Surgery of the Spine Physician1891115085
  2. Kailey Baker, AT-C, OT-COrthopaedic Surgery Physician1801379565
  3. Nicole Castro, PA-CSurgical Physician Assistant1962330829
  4. Wilson Chang, MDPhysical Medicine & Rehabilitation Physician1285994699
  5. Elizabeth Elander, PA-CSurgical Physician Assistant1720402688
  6. Jamie Emerson, ATC, MA-RAthletic Trainer1508425695

Verify Larissa Quadracci Mattei in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PA60715586
    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 Washington 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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2.2 times the Medicare Part D claims of the average surgical physician assistant in 2024

669 Medicare Part D claims for 164 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 250 claims were for opioids.

  1. Larissa Mattei669
  2. Specialty average304

Most prescribed

  1. Cephalexin125 claims
  2. Ondansetron Odt120 claims
  3. Celecoxib112 claims
  4. Oxycodone Hcl112 claims
  5. Tramadol Hcl112 claims
  6. Eliquis19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Proliance Surgeons Inc P SBellevue, WA

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

Larissa Quadracci Mattei among 609 surgical physician assistant records in Washington

Larissa Quadracci Mattei, PA-C is one of 609 surgical physician assistant records with a practice address in Washington. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 59% of them.

  • NPI issued2016 · 59% of these records are older, 35% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2016 · median 2015 among the 479 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

28 surgical physician assistant records list a practice address in Issaquah

They are 28 of the 1,727 NPPES records with a practice address in Issaquah, and 609 surgical physician assistant records in Washington.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Lynn Adraincem, PA-CIssaquah, WA 980291730439456
  2. Kathleen Cozza, PA-CIssaquah, WA 980291750558771
  3. Elizabeth Elander, PA-CIssaquah, WA 980291720402688
  4. Stephanie Granvall, P.A.-CIssaquah, WA 980291861477960
  5. Briccio Guillermo, PA-CIssaquah, WA 980291417291600
  6. Todd Kreps, PA-CIssaquah, WA 980291679663488
  7. Megan Lupa, PA-CIssaquah, WA 980291346671070
  8. Kathryn Martin, PA-CIssaquah, WA 980291982073169

Common questions

What is Larissa Quadracci Mattei, PA-C's NPI number?

Larissa Quadracci Mattei, PA-C's National Provider Identifier (NPI) is 1033653142, issued on Dec 7, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Larissa Quadracci Mattei, PA-C located?

The NPPES record lists a practice address at 510 8TH Ave NE Ste 200, Issaquah, WA, 98029. Phone: (253) 392-3030. Providers update this record themselves, so call before visiting.

How can I verify Larissa Quadracci Mattei, PA-C's license?

NPPES lists Washington license number PA60715586, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Larissa Quadracci Mattei, PA-C prescribe under Medicare Part D?

In 2024, Larissa Quadracci Mattei, PA-C had 669 Medicare Part D claims for 164 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions 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.

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.