Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joan Marie Butler, NP CNM

Q: What is the NPI number for Joan Butler?

The National Provider Identifier (NPI) for Joan Butler is 1528186939, a Type 1 (individual) record in the CMS NPPES registry.

Advanced Practice Midwife in Southampton, NY · enumerated 2007.

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

National Provider Identifier

1528186939

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Registry record

Entity type Individual (Type 1)

Name Joan Marie Butler

Credential NP CNM

Sex Female

Practice address 595 Hampton Rd, Southampton, NY, 11968

Phone (631) 675-2125

Fax (631) 675-2624

Enumeration date Mar 26, 2007

Last updated in NPPES Mar 23, 2017

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License F000625 (NY) 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

Where does Joan Butler practice?

The practice location on file with NPPES is in Southampton, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Joan Butler?

The National Provider Identifier (NPI) for Joan Butler is 1528186939, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-23.