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William Edward Diffenderfer, CADC

Addiction (Substance Use Disorder) Counselor in Bridgton, ME · enumerated 2026 · practices at Robert P Doyle, M.D., P.A..

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

National Provider Identifier

1194676361

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Registry record

Entity type Individual (Type 1)
Name William Edward Diffenderfer
Credential CADC
Sex Male
Practice address 87 S High St, Bridgton, ME, 04009
Phone (207) 647-5600
Enumeration date Feb 4, 2026
Last updated in NPPES Feb 4, 2026

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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

Is NPI 1194676361 active?
Yes, as of the latest NPPES snapshot, NPI 1194676361 is active (record last updated 2026-02-04).
How do I verify William Diffenderfer's NPI record?
Cross-check NPI 1194676361 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-04.