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

Colin Sauder, PHD

Q: What is the NPI number for Colin Sauder?

The National Provider Identifier (NPI) for Colin Sauder is 1104466846, a Type 1 (individual) record in the CMS NPPES registry.

Psychologist in Watertown, MA · enumerated 2020.

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

National Provider Identifier

1104466846

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Registry record

Entity type Individual (Type 1)

Name Colin Sauder

Credential PHD

Sex Male

Practice address Watertown, MA, 02472

Phone (617) 744-8542

Enumeration date Jan 10, 2020

Last updated in NPPES Jan 10, 2020

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

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 11184 (MA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Colin Sauder?

The National Provider Identifier (NPI) for Colin Sauder is 1104466846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Colin Sauder practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-10.