Gary Sigmund
NPI 1780368977 · Addiction (Substance Use Disorder) Counselor · Fullerton, CA
Gary Sigmund is a Addiction (Substance Use Disorder) Counselor provider in Fullerton, CA (NPI 1780368977).
Provider details
- NPI number
- 1780368977
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 15528 (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
3 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
- 2023-06-09
- Last updated
- 2023-06-20
- Certified
- 2023-06-20
Frequently asked questions
- What is Gary Sigmund's NPI number?
- Gary Sigmund's National Provider Identifier (NPI) is 1780368977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Sigmund's specialty?
- Gary Sigmund is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Gary Sigmund located?
- Gary Sigmund's practice location on file with NPPES is 771 W Orangethorpe Ave, Fullerton, CA 92832-2806.
- What is Gary Sigmund's phone number?
- The practice phone number listed in the NPPES registry for Gary Sigmund is (714) 879-0929.
- Is Gary Sigmund's NPI active?
- Yes — Gary Sigmund's NPI (1780368977) is active in the NPPES registry as of the last update on 2023-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.