Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Judith Ann Michalk, ARNP, MPH.

Advanced Practice Midwife in Tacoma, WA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245395524

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Registry record

Entity type Individual (Type 1)

Name Mrs. Judith Ann Michalk

Credential ARNP, MPH.

Sex Female

Practice address 813 Martin Lurther King Jr Way, Suite # 200, Tacoma, WA, 98405

Phone (253) 770-3900

Enumeration date Dec 27, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License AP30001472 (WA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Judith Michalk?

Judith Michalk is registered in NPPES with the primary taxonomy of Advanced Practice Midwife. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.