NPI Portal NPI Lookup & Verification

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

Dr. Susan Elaine Doyle, ND

Naturopath in Newburyport, MA · enumerated 2011 · practices at Mariska Visser LLC.

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

National Provider Identifier

1255626222

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Registry record

Entity type Individual (Type 1)
Name Dr. Susan Elaine Doyle
Credential ND
Sex Female
Practice address Newburyport, MA, 01950
Phone (978) 376-1928
Enumeration date Jun 17, 2011
Last updated in NPPES Jun 17, 2011

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

Taxonomy & licenses

175F00000X Naturopath Other Service Providers · License 1043 (OR) 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.

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Frequently asked questions

What is the NPI number for Susan Doyle?
The National Provider Identifier (NPI) for Susan Doyle is 1255626222, a Type 1 (individual) record in the CMS NPPES registry.
Where does Susan Doyle practice?
The practice location on file with NPPES is in Newburyport, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-17.