NPPES file of Aug 9, 2026

Barak Gaster

Internal Medicine Physician · Seattle, WA

Barak Gaster is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1811073620, issued on Oct 27, 2006. Check the license (Washington MD00032943, 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
1811073620
Name
Barak Gaster
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00032943 WA
Self-reported in NPPES; status is on the state search
Practice location
Uwmc-Roosevelt, Seattle, WA 98105
Phone
(206) 598-8750
Enumerated
Oct 27, 2006
Record last updated
Nov 20, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
1811073620 WA
Medicare enrollment
Enrolled (PECOS I20100324000063); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 1993
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 Uwmc-Roosevelt

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

  1. David AcostaFamily Medicine Physician1780764761
  2. Kristina Adams WaldorfObstetrics & Gynecology Physician1659457463
  3. Anne-Marie Amies OelschlagerObstetrics & Gynecology Physician1003992371
  4. John AmoryInternal Medicine Physician1114003910
  5. Sanford BarnesDermatology Physician1225114028
  6. Charles Chesnut, MDNuclear Medicine Physician1609952456

Verify Barak Gaster in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00032943
    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 internal medicine physician in 2024

1,380 Medicare Part D claims for 145 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Barak Gaster1,380
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium81 claims
  2. Atorvastatin Calcium80 claims
  3. Amlodipine Besylate74 claims
  4. Simvastatin55 claims
  5. Lisinopril51 claims
  6. Levothyroxine Sodium48 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score74.0
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Select Outpatient Services IncGlenview, IL
  2. Select Rehabilitation, LLCGlenview, IL
  3. The Association OF University PhysiciansSeattle, WA

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

Barak Gaster among 3,079 internal medicine physician records in Washington

Barak Gaster is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1993 · median 2006 among the 1,852 with a school on file
  • Record last updated2012 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

821 internal medicine physician records list a practice address in Seattle

They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Emily Cooper, MDSeattle, WA 981051780614370
  2. Ellen Mary Cosgrove, MDSeattle, WA 981051174539738
  3. David Dugdale, M.D.Seattle, WA 981051265529895
  4. Anne EackerSeattle, WA 981051720164577
  5. Jaime Friedman, M.D.Seattle, WA 981051619971512
  6. Vara Kraft, M.D.Seattle, WA 981051174509293
  7. Frank Mitchell, MDSeattle, WA 981051891804977
  8. Joan Olson, MDSeattle, WA 981051629070123

Common questions

What is Barak Gaster's NPI number?

Barak Gaster's National Provider Identifier (NPI) is 1811073620, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Barak Gaster located?

The NPPES record lists a practice address at Uwmc-Roosevelt, Seattle, WA, 98105. Phone: (206) 598-8750. Providers update this record themselves, so call before visiting.

How can I verify Barak Gaster's license?

NPPES lists Washington license number MD00032943, 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 Barak Gaster prescribe under Medicare Part D?

In 2024, Barak Gaster had 1,380 Medicare Part D claims for 145 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Barak Gaster's MIPS final score?

The 2023 MIPS final score is 93.1 of 100. 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.