Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Diedre Willer, CNM

Advanced Practice Midwife in Brooklyn, NY · enumerated 2021.

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

National Provider Identifier

1811560725

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Registry record

Entity type Individual (Type 1)

Name Diedre Willer

Credential CNM

Sex Female

Practice address Brooklyn, NY, 11212

Phone (929) 422-1836

Enumeration date Jul 19, 2021

Last updated in NPPES Jul 19, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 002088 (NY) Primary

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

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 Diedre Willer?

Diedre Willer 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 2021-07-19.