Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Doris A. Hahn, C.N.M.

Advanced Practice Midwife in Olympia, WA · enumerated 2006.

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

National Provider Identifier

1538224977

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Registry record

Entity type Individual (Type 1)

Name Doris A. Hahn

Credential C.N.M.

Sex Female

Practice address 700 Lilly Rd Ne, Olympia, WA, 98506

Phone (360) 923-7000

Fax (360) 923-7089

Enumeration date Dec 26, 2006

Last updated in NPPES May 11, 2021

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License RN00102066 (WA) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License AP30002185 (WA) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
9618042	Medicaid	WA	-

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.

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Frequently asked questions

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.

What specialty is Doris Hahn?

Doris Hahn 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-11.