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

Dr. Barbara F Rassow, DC CNM

Advanced Practice Midwife in Westport, CT · enumerated 2007.

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

National Provider Identifier

1699893958

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Registry record

Entity type Individual (Type 1)

Name Dr. Barbara F Rassow

Credential DC CNM

Sex Female

Practice address Westport, CT, 06880

Phone (203) 226-7722

Enumeration date Mar 26, 2007

Last updated in NPPES Dec 23, 2010

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

Taxonomy & licenses

111NN1001X Nutrition Chiropractor Chiropractic Providers · License 000454 (CT) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 000304 (CT) Primary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License F001279-1 (NY) Secondary

Other identifiers

Identifier	Type	State	Issuer
001279	Other	NY	LICENSE#

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

How do I verify Barbara Rassow's NPI record?

Cross-check NPI 1699893958 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1699893958 active?

Yes, as of the latest NPPES snapshot, NPI 1699893958 is active (record last updated 2010-12-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-23.