NPPES file of Aug 9, 2026

Caitlin Marianna Williams, PHARMD

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Federal Way, WA

Caitlin Marianna Williams, PHARMD is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Federal Way, Washington, and NPI 1679359947, issued on Sep 4, 2023. Check the license (Washington PH61575306, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679359947
Name
Caitlin Marianna Williams
Credential
PHARMD
Primary taxonomy
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
License number
PH61575306 WA
Self-reported in NPPES; status is on the state search
Practice location
301 S 320TH St, Federal Way, WA 98003
Phone
(253) 874-7000
Enumerated
Sep 4, 2023
Record last updated
Jan 29, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 301 S 320TH St

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

  1. Yumi Ando, M.D.Gastroenterology Physician1295001634
  2. Neem Bhatt, D.O.Family Medicine Physician1952569766
  3. Stephen Bock, M.D.Family Medicine Physician1558749325
  4. Susanne BottjerPharmacist1639215403
  5. David Caton, O.D.Optometrist1073670345
  6. Tapuwa ChikwinyaOptometrist1063909935

Verify Caitlin Marianna Williams 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 PH61575306
    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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Caitlin Marianna Williams among 610 pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington

Caitlin Marianna Williams, PHARMD is one of 610 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in Washington. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2023, is newer than 90% of them.

  • NPI issued2023 · 90% of these records are older, 7% newer
  • In a Medicare fileNo · 42% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Washington

There are 610 pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes

  1. Rosanne Fuentes-Lee, PHARMDFederal Way, WA 980031760493928
  2. Cory HamadaFederal Way, WA 980031124560891
  3. William ChanBellevue, WA 980041164727855
  4. Sareh GhazanfarpourBellevue, WA 980041912264953
  5. Yoon JoBellevue, WA 980041740112291
  6. Jack LiaoBellevue, WA 980041558295097
  7. Addie Littrell, PHARMDBellevue, WA 980041861025371
  8. Amitris Mazhari, PHARM DBellevue, WA 980041548523483

Common questions

What is Caitlin Marianna Williams, PHARMD's NPI number?

Caitlin Marianna Williams, PHARMD's National Provider Identifier (NPI) is 1679359947, issued on Sep 4, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Caitlin Marianna Williams, PHARMD located?

The NPPES record lists a practice address at 301 S 320TH St, Federal Way, WA, 98003. Phone: (253) 874-7000. Providers update this record themselves, so call before visiting.

How can I verify Caitlin Marianna Williams, PHARMD's license?

NPPES lists Washington license number PH61575306, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.