IndividualActive
Joseph Leon
NPI 1124219654 · Counselor · Upland, CA
Joseph Leon is a Counselor provider in Upland, CA (NPI 1124219654).
Provider details
- NPI number
- 1124219654
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(82/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
916 N Mountain Ave
Suite a
Upland, CA 91786-3697
Phone: (909) 932-1069
Street-level locationGet directions
Mailing address
1221 N Vineyard Ave
Ontario, CA 91764-2277
Registry dates
- Enumerated
- 2007-08-08
- Last updated
- 2007-08-08
Frequently asked questions
- What is Joseph Leon's NPI number?
- Joseph Leon's National Provider Identifier (NPI) is 1124219654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Leon's specialty?
- Joseph Leon is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Joseph Leon located?
- Joseph Leon's practice location on file with NPPES is 916 N Mountain Ave, Upland, CA 91786-3697.
- What is Joseph Leon's phone number?
- The practice phone number listed in the NPPES registry for Joseph Leon is (909) 932-1069.
- Is Joseph Leon's NPI active?
- Yes — Joseph Leon's NPI (1124219654) is active in the NPPES registry as of the last update on 2007-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.