David Sigler
NPI 1447181128 · Addiction (Substance Use Disorder) Counselor · Glendora, CA
David Sigler is a Addiction (Substance Use Disorder) Counselor provider in Glendora, CA (NPI 1447181128).
Provider details
- NPI number
- 1447181128
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 25358 (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
Under 1 yr in 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
- 2026-05-29
- Last updated
- 2026-05-29
- Certified
- 2026-05-29
Frequently asked questions
- What is David Sigler's NPI number?
- David Sigler's National Provider Identifier (NPI) is 1447181128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Sigler's specialty?
- David Sigler is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is David Sigler located?
- David Sigler's practice location on file with NPPES is 1340 E Route 66 Ste 106, Glendora, CA 91740-3783.
- What is David Sigler's phone number?
- The practice phone number listed in the NPPES registry for David Sigler is (626) 263-5543.
- Is David Sigler's NPI active?
- Yes — David Sigler's NPI (1447181128) is active in the NPPES registry as of the last update on 2026-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.