Matthew C. Marshall, MPAS, PA-C
Physician Assistant · Olympia, WA
Matthew C. Marshall, MPAS, PA-C is a physician assistant with a practice address in Olympia, Washington, and NPI 1588924781, issued on May 22, 2012. Check the license (Washington PA60320257, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew C. Marshall
- Credential
- MPAS, PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA60320257 WA
PA180353 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3901 Capital Mall Dr SW Ste B, Olympia, WA 98502
- Phone
- (360) 528-8571
- Enumerated
- May 22, 2012
- Record last updated
- Jun 5, 2026
- Fax
- (360) 528-8562
- Medicare enrollment
- Enrolled (PECOS I20170310001158); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 3901 Capital Mall Dr SW Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew C. Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA60320257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average physician assistant in 2024
282 Medicare Part D claims for 146 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 133 claims were for opioids.
Most prescribed
- Oxycodone Hcl110 claims
- Diclofenac Sodium25 claims
- Promethazine Hcl24 claims
- Ondansetron Odt15 claims
- Ibuprofen14 claims
- Cephalexin12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Olympia Orthopaedic Associates PLLCOlympia, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew C. Marshall among 3,718 physician assistant records in Washington
Matthew C. Marshall, MPAS, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 39% of them.
- NPI issued2012 · 39% of these records are older, 58% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2017 among the 2,460 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
108 physician assistant records list a practice address in Olympia
They are 108 of the 5,034 NPPES records with a practice address in Olympia, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Olympia → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Scott Adams, PACOlympia, WA 985021558642066
- Jared Cornelison, PA-COlympia, WA 985021093068595
- Heather Cushing, PA-COlympia, WA 985021710937305
- Lawrence Hartford, PA-COlympia, WA 985021427014745
- Steven Mock, PA-COlympia, WA 985021366727976
- Jamie Nixon, PA-COlympia, WA 985021619060431
- Lindsay Nourse, PA-COlympia, WA 985021568790384
- Alex Pittman, PT PA-COlympia, WA 985021881970200
Common questions
What is Matthew C. Marshall, MPAS, PA-C's NPI number?
Matthew C. Marshall, MPAS, PA-C's National Provider Identifier (NPI) is 1588924781, issued on May 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Matthew C. Marshall, MPAS, PA-C located?
The NPPES record lists a practice address at 3901 Capital Mall Dr SW Ste B, Olympia, WA, 98502. Phone: (360) 528-8571. Providers update this record themselves, so call before visiting.
How can I verify Matthew C. Marshall, MPAS, PA-C's license?
NPPES lists Washington license number PA60320257, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Matthew C. Marshall, MPAS, PA-C prescribe under Medicare Part D?
In 2024, Matthew C. Marshall, MPAS, PA-C had 282 Medicare Part D claims for 146 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Matthew C. Marshall, MPAS, PA-C's MIPS final score?
The 2023 MIPS final score is 88.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.