NPPES file of Aug 9, 2026

Yoichiro Shimada, PA

Surgical Physician Assistant · Seattle, WA

Yoichiro Shimada, PA is a surgical physician assistant with a practice address in Seattle, Washington, and NPI 1962049577, issued on Dec 2, 2019. Check the license (Washington 61314260, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962049577
Name
Yoichiro Shimada
Credential
PA
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License numbers
61314260 WA
10413 GA
AT002792 GA
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 341-0060
Enumerated
Dec 2, 2019
Record last updated
Sep 26, 2024
Fax
(206) 625-7245
Medicare enrollment
Enrolled (PECOS I20220929002832); 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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Also registered at 1100 9TH Ave

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

  1. Barry Aaronson, MDHospitalist Physician1952418345
  2. David Aboulafia, MDHematology & Oncology Physician1043269392
  3. Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
  4. Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
  5. Ream AdeebAdult Health Nurse Practitioner1760868855
  6. Steven Adler, MDDiagnostic Ultrasound Physician1639108046

Verify Yoichiro Shimada 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 61314260
    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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3.7 times the Medicare Part D claims of the average surgical physician assistant in 2024

1,129 Medicare Part D claims for 225 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 610 claims were for opioids.

  1. Yoichiro Shimada1,129
  2. Specialty average304

Most prescribed

  1. Oxycodone Hcl316 claims
  2. Tramadol Hcl246 claims
  3. Ondansetron Odt179 claims
  4. Meloxicam123 claims
  5. Methocarbamol50 claims
  6. Hydrocodone-Acetaminophen32 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.

  1. Qualityout of 100 · 30% of the final score75.1
  2. Costout of 100 · 30%86.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Virginia Mason Medical CenterSeattle, WA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Yoichiro Shimada among 609 surgical physician assistant records in Washington

Yoichiro Shimada, PA 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 2019, is newer than 73% of them.

  • NPI issued2019 · 73% of these records are older, 22% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2021 · 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).

Surgical Physician Assistant providers in Washington

There are 609 surgical physician assistant records in Washington.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Francesco Araya, PA CSeattle, WA 981011861432262
  2. William Campbell, PACSeattle, WA 981011952449688
  3. Mary Ditkoff, PACSeattle, WA 981011205974938
  4. Noelani Fielder, PA-CSeattle, WA 981011104027788
  5. Roland Fuentes, PACSeattle, WA 981011134267495
  6. Wallace Geiger, PACSeattle, WA 981011790822021
  7. Michelle Gilbert, PASeattle, WA 981011174764534
  8. Scott Goldberg, PA-CSeattle, WA 981011255490264

Common questions

What is Yoichiro Shimada, PA's NPI number?

Yoichiro Shimada, PA's National Provider Identifier (NPI) is 1962049577, issued on Dec 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Yoichiro Shimada, PA located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 341-0060. Providers update this record themselves, so call before visiting.

How can I verify Yoichiro Shimada, PA's license?

NPPES lists Washington license number 61314260, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Yoichiro Shimada, PA prescribe under Medicare Part D?

In 2024, Yoichiro Shimada, PA had 1,129 Medicare Part D claims for 225 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.

What is Yoichiro Shimada, PA'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.