NPPES file of Aug 9, 2026

Paige Kasai, M.D.

Family Medicine Physician · Seattle, WA

Paige Kasai, M.D. is a family medicine physician with a practice address in Seattle, Washington, and NPI 1922310283, issued on Jul 2, 2010. Check the license (Washington ML60165314, as entered in NPPES) on the Washington Medical Commission; 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
1922310283
Name
Paige Kasai
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
ML60165314 WA
Self-reported in NPPES; status is on the state search
Practice location
550 16TH Ave Ste 100, Seattle, WA 98122
Phone
(206) 320-2484
Enumerated
Jul 2, 2010
Record last updated
Jul 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131024000228); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2010
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 550 16TH Ave Ste 100

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

  1. Karen Aislinn, MSWClinical Social Worker1215011937
  2. Sage Arvila, MDStudent in an Organized Health Care Education/Training Program1992508709
  3. Adam Casey, OMS-IVStudent in an Organized Health Care Education/Training Program1255135224
  4. Allyson Chambers, MDFamily Medicine Physician1285820209
  5. Lisa Chan, MDFamily Medicine Physician1295197747
  6. Kristienne Edrosolan, MD, MPHStudent in an Organized Health Care Education/Training Program1003610809

Verify Paige Kasai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license ML60165314
    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
Open 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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57% fewer Medicare Part D claims than the average family medicine physician in 2024

1,528 Medicare Part D claims for 141 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 17 claims were for opioids.

  1. Paige Kasai1,528
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium151 claims
  2. Levothyroxine Sodium65 claims
  3. Amlodipine Besylate60 claims
  4. Rosuvastatin Calcium57 claims
  5. Losartan Potassium50 claims
  6. Gabapentin46 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): 79.2 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 score74.5
  2. Costout of 100 · 30%56.0
  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).

Bills Medicare through one group practice

  1. Overlake Medical Clinics LLCBellevue, WA

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

Paige Kasai among 5,534 family medicine physician records in Washington

Paige Kasai, M.D. is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 59% of them.

  • NPI issued2010 · 59% of these records are older, 38% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2010 · median 2009 among the 3,294 with a school on file
  • Record last updated2010 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

871 family medicine physician records list a practice address in Seattle

They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. William Alto, MD, MPHSeattle, WA 981221962478073
  2. Philip Capp, MDSeattle, WA 981221427161744
  3. Sharon Grayson, MDSeattle, WA 981221700806734
  4. Anne Hirsch, ARNPSeattle, WA 981221710972666
  5. Jane King, M.D.Seattle, WA 981221518956226
  6. Sarah Lesko, M.D.Seattle, WA 981221447220439
  7. Monica Mayhill, MDSeattle, WA 981221902858061
  8. Robert McIntyre, M.D.Seattle, WA 981221689770216

Common questions

What is Paige Kasai, M.D.'s NPI number?

Paige Kasai, M.D.'s National Provider Identifier (NPI) is 1922310283, issued on Jul 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Paige Kasai, M.D. located?

The NPPES record lists a practice address at 550 16TH Ave Ste 100, Seattle, WA, 98122. Phone: (206) 320-2484. Providers update this record themselves, so call before visiting.

How can I verify Paige Kasai, M.D.'s license?

NPPES lists Washington license number ML60165314, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Paige Kasai, M.D. prescribe under Medicare Part D?

In 2024, Paige Kasai, M.D. had 1,528 Medicare Part D claims for 141 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Paige Kasai, M.D.'s MIPS final score?

The 2023 MIPS final score is 79.2 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.