Challa Gregory
NPI 1821467580 · Addiction (Substance Use Disorder) Counselor · Van Nuys, CA
Challa Gregory is a Addiction (Substance Use Disorder) Counselor provider in Van Nuys, CA (NPI 1821467580).
Provider details
- NPI number
- 1821467580
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- 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
10 yrs in NPPES 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
- 2015-09-23
- Last updated
- 2026-03-23
- Certified
- 2026-03-23
Frequently asked questions
- What is Challa Gregory's NPI number?
- Challa Gregory's National Provider Identifier (NPI) is 1821467580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Challa Gregory's specialty?
- Challa Gregory is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Challa Gregory located?
- Challa Gregory's practice location on file with NPPES is 14530 Sylvan St, Van Nuys, CA 91411-2324.
- What is Challa Gregory's phone number?
- The practice phone number listed in the NPPES registry for Challa Gregory is (818) 582-8832.
- Is Challa Gregory's NPI active?
- Yes — Challa Gregory's NPI (1821467580) is active in the NPPES registry as of the last update on 2026-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.