William Diffenderfer, CADC
NPI 1194676361 · Addiction (Substance Use Disorder) Counselor · Bridgton, ME
William Diffenderfer, CADC is a Addiction (Substance Use Disorder) Counselor provider in Bridgton, ME (NPI 1194676361).
Provider details
- NPI number
- 1194676361
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CADC
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2026-02-04
- Last updated
- 2026-02-04
- Certified
- 2026-02-04
Frequently asked questions
- What is William Diffenderfer's NPI number?
- William Diffenderfer's National Provider Identifier (NPI) is 1194676361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Diffenderfer's specialty?
- William Diffenderfer is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Diffenderfer located?
- William Diffenderfer's practice location on file with NPPES is 87 S High St, Bridgton, ME 04009-1123.
- What is William Diffenderfer's phone number?
- The practice phone number listed in the NPPES registry for William Diffenderfer is (207) 647-5600.
- Is William Diffenderfer's NPI active?
- Yes — William Diffenderfer's NPI (1194676361) is active in the NPPES registry as of the last update on 2026-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.