Linda Stilwell
NPI 1780236422 · Mental Health Counselor · Rancho Cucamonga, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Linda Stilwell is a Mental Health Counselor provider in Rancho Cucamonga, CA (NPI 1780236422).
Provider details
- NPI number
- 1780236422
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 27261 Las Ramblas Ste 220Mission Viejo, CA 92691-6468Phone: (909) 303-2520
Registry dates
- Enumerated
- 2019-07-12
- Last updated
- 2025-09-29
- Certified
- 2025-09-29
Frequently asked questions
- What is Linda Stilwell's NPI number?
- Linda Stilwell's National Provider Identifier (NPI) is 1780236422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Linda Stilwell's specialty?
- Linda Stilwell is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Linda Stilwell located?
- Linda Stilwell's practice location on file with NPPES is 9500 Haven Ave, Rancho Cucamonga, CA 91730-5807.
- What is Linda Stilwell's phone number?
- The practice phone number listed in the NPPES registry for Linda Stilwell is (909) 980-6700.
- Does Linda Stilwell accept Medicare?
- Linda Stilwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Linda Stilwell's NPI active?
- Yes — Linda Stilwell's NPI (1780236422) is active in the NPPES registry as of the last update on 2025-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.