NPPES file of Aug 9, 2026

William R. Berrington, M.D., PH.D.

Infectious Disease Physician · Seattle, WA

William R. Berrington, M.D., PH.D. is an infectious disease physician with a practice address in Seattle, Washington, and NPI 1558374025, issued on Aug 14, 2006. Check the license (Washington MD00042229, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558374025
Name
William R. Berrington
Credential
M.D., PH.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
MD00042229 WA
Self-reported in NPPES; status is on the state search
Practice location
747 Broadway, Seattle, WA 98122
Phone
(206) 215-2520
Enumerated
Aug 14, 2006
Record last updated
Mar 7, 2023
Fax
(206) 386-3180
Medicare enrollment
Enrolled (PECOS I20040525001604); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2000
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.
Download card Updates feed

Also registered at 747 Broadway

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

  1. Justin Abadejos, DOStudent in an Organized Health Care Education/Training Program1629771670
  2. Alexa AbdullahDoula1346710001
  3. Manal Abdur Rahman, MDInternal Medicine Physician1073049805
  4. Jennifer Achilles, MDPediatrics Physician1891965133
  5. Michele AdamsSpecialist1619131448
  6. Jinny Kaye AgpaoaFamily Nurse Practitioner1609686724

Verify William R. Berrington in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00042229
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

The practice group's MIPS final score for 2023 (Medicare payment program): 82.8 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 score82.1
  2. Costout of 100 · 30%60.7
  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 3 group practices

  1. Providence Health And Services WashingtonSeattle, WA
  2. Providence Medical InstituteSeattle, WA
  3. Swedish Health ServicesSeattle, WA

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

William R. Berrington among 263 infectious disease physician records in Washington

William R. Berrington, M.D., PH.D. is one of 263 infectious disease physician records with a practice address in Washington. 77% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 57% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2000 · median 2005 among the 175 with a school on file
  • Record last updated2023 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Washington

There are 263 infectious disease physician records in Washington.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Jason Goldman, M.D., M.P.H.Seattle, WA 981221740436609
  2. Luis Lantigua-Tatem, MDSeattle, WA 981221205125820
  3. Amy Treakle, MDSeattle, WA 981221831224435
  4. Benjamin Zaniello, MDSeattle, WA 981221639338544
  5. Troy Martin, MDSeattle, WA 981251881679397
  6. Lynn Frumkin, M.D.Seattle, WA 981161467726893
  7. Joshua Jeharajah, M.D.Seattle, WA 981121164869822
  8. Jason Kettler, M.D.Seattle, WA 981121134316300

Common questions

What is William R. Berrington, M.D., PH.D.'s NPI number?

William R. Berrington, M.D., PH.D.'s National Provider Identifier (NPI) is 1558374025, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William R. Berrington, M.D., PH.D. located?

The NPPES record lists a practice address at 747 Broadway, Seattle, WA, 98122. Phone: (206) 215-2520. Providers update this record themselves, so call before visiting.

How can I verify William R. Berrington, M.D., PH.D.'s license?

NPPES lists Washington license number MD00042229, 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.

What is William R. Berrington, M.D., PH.D.'s MIPS final score?

The 2023 MIPS final score is 82.8 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.