IndividualActive
Jonathan Mendez
NPI 1881101558 · Mental Health Counselor · Upland, CA
Jonathan Mendez is a Mental Health Counselor provider in Upland, CA (NPI 1881101558).
Provider details
- NPI number
- 1881101558
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
222 N Mountain Ave Ste 110b
Upland, CA 91786-5714
Phone: (909) 303-2505
Street-level locationGet directions
Mailing address
27261 Las Ramblas Ste 220
Mission Viejo, CA 92691-6468
Registry dates
- Enumerated
- 2018-01-04
- Last updated
- 2018-01-04
Frequently asked questions
- What is Jonathan Mendez's NPI number?
- Jonathan Mendez's National Provider Identifier (NPI) is 1881101558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Mendez's specialty?
- Jonathan Mendez is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Jonathan Mendez located?
- Jonathan Mendez's practice location on file with NPPES is 222 N Mountain Ave Ste 110b, Upland, CA 91786-5714.
- What is Jonathan Mendez's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Mendez is (909) 303-2505.
- Is Jonathan Mendez's NPI active?
- Yes — Jonathan Mendez's NPI (1881101558) is active in the NPPES registry as of the last update on 2018-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.