What is Larissa Mattei's NPI number?

Larissa Mattei's National Provider Identifier (NPI) is 1033653142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Larissa Mattei's specialty?

Larissa Mattei is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Larissa Mattei located?

Larissa Mattei's practice location on file with NPPES is 510 8th Ave Ne Ste 200, Issaquah, WA 98029-5436.

What is Larissa Mattei's phone number?

The practice phone number listed in the NPPES registry for Larissa Mattei is (253) 392-3030.

Does Larissa Mattei accept Medicare?

Larissa Mattei is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Larissa Mattei's NPI active?

Yes — Larissa Mattei's NPI (1033653142) is active in the NPPES registry as of the last update on 2024-05-13.

IndividualActiveAccepts Medicare

Larissa Mattei, PA-C

NPI 1033653142 · Surgical Physician Assistant · Issaquah, WA

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Larissa Mattei, PA-C is a Surgical Physician Assistant provider in Issaquah, WA (NPI 1033653142).

Provider details

NPI number: 1033653142
Entity type: Individual
Primary specialty: Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Female
Sole proprietor: No
License: PA60715586 (WA)

Specialties & taxonomies

Surgical Physician AssistantPrimary363AS0400XLicense PA60715586 (WA)
Physician Assistants & Advanced Practice Nursing Providers
Medical Physician Assistant363AM0700XLicense PA60715586 (WA)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(68/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
9 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
4 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
289 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	111	$118
X-Ray of Hip, 2-3 Views73502	41	$47
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	31	$81
X-Ray of Knee, 3 Views73562	30	$41
Aspiration And/Or Injection of Fluid From Large Joint20610	23	$68
Replacement of Knee Joint, Both Sides of Knee27447	20

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Cephalexin	125	117
Ondansetronbrand: Ondansetron Odt	120	118
Celecoxib	112	103
Oxycodone Hcl	112	98
Tramadol Hcl	112	101
Apixabanbrand: Eliquis	19	18
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen

Practice location

510 8th Ave Ne Ste 200

Issaquah, WA 98029-5436

Phone: (253) 392-3030

Fax: (425) 392-2564

Street-level locationGet directions

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Mailing address

510 8th Ave Ne Ste 320