Darryl Diehr, CATC
NPI 1639579436 · Addiction (Substance Use Disorder) Counselor · Fresno, CA
Darryl Diehr, CATC is a Addiction (Substance Use Disorder) Counselor provider in Fresno, CA (NPI 1639579436).
Provider details
- NPI number
- 1639579436
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CATC
- Sex
- Male
- Sole proprietor
- No
- License
- 102280 (CA)
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
11 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2014-08-28
- Last updated
- 2018-04-10
Frequently asked questions
- What is Darryl Diehr's NPI number?
- Darryl Diehr's National Provider Identifier (NPI) is 1639579436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darryl Diehr's specialty?
- Darryl Diehr is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Darryl Diehr located?
- Darryl Diehr's practice location on file with NPPES is 3707 E Shields Ave, Fresno, CA 93726-7029.
- What is Darryl Diehr's phone number?
- The practice phone number listed in the NPPES registry for Darryl Diehr is (592) 299-0405.
- Is Darryl Diehr's NPI active?
- Yes — Darryl Diehr's NPI (1639579436) is active in the NPPES registry as of the last update on 2018-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.