NPPES file of Aug 9, 2026

Cassandra Ruth Willison, CNM

Advanced Practice Midwife · Greenbank, WA

Cassandra Ruth Willison, CNM is an advanced practice midwife with a practice address in Greenbank, Washington, and NPI 1043608300, issued on Jan 8, 2015. Check the license (Washington AP60533429, 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
1043608300
Name
Cassandra Ruth Willison
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License number
AP60533429 WA
Self-reported in NPPES; status is on the state search
Practice location
3455 Old County RD, Greenbank, WA 98253
Phone
(360) 678-3594
Enumerated
Jan 8, 2015
Record last updated
Jan 8, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(360) 678-3783
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 3455 Old County RD

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

  1. Toni Marthaller-Andersen, ARNPFamily Nurse Practitioner1679536916
  2. Diana Miller, CPM LMMidwife1366921868

Verify Cassandra Ruth Willison 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 AP60533429
    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

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1 advanced practice midwife records list a practice address in Greenbank

They are 1 of the 15 NPPES records with a practice address in Greenbank, and 528 advanced practice midwife records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other advanced practice midwife records in Washington

  1. Shaanti Abbruzzese, CNMVancouver, WA1063577815
  2. Marley Abrams, CNMVancouver, WA1538558762
  3. Marilyn Acquah, BSN, RNSeattle, WA1770118820
  4. Mahshid Aghasadeghi, ARNPSpokane, WA1962860981
  5. Bliss Ali, ARNP, CNMShoreline, WA1457547325
  6. Audrey Allard, CNMSeattle, WA1366674632
  7. Sarah Allen, DNP, CNM, ARNPSeattle, WA1831544915
  8. Molly Altman, CNM, ARNPEverett, WA1467536771
  9. Christy Aluko, CNMVancouver, WA1992328306
  10. Megan Ames, CNMRichland, WA1619508108

Common questions

What is Cassandra Ruth Willison, CNM's NPI number?

Cassandra Ruth Willison, CNM's National Provider Identifier (NPI) is 1043608300, issued on Jan 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Ruth Willison, CNM located?

The NPPES record lists a practice address at 3455 Old County RD, Greenbank, WA, 98253. Phone: (360) 678-3594. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Ruth Willison, CNM's license?

NPPES lists Washington license number AP60533429, 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.