Janet M Stier PHD Clinical Psychologist PC
NPI 1861206781 · Adolescent and Children Mental Health Clinic/Center · Valencia, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet M Stier PHD Clinical Psychologist PC is a Adolescent and Children Mental Health Clinic/Center organization in Valencia, CA (NPI 1861206781).
Provider details
- NPI number
- 1861206781
- Entity type
- Organization
- Primary specialty
- Adolescent and Children Mental Health Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Janet Stier, Clinical Psychologist/President(661) 310-8410
Specialties & taxonomies
Ambulatory Health Care Facilities
- Adult Mental Health Clinic/Center261QM0850X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES 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
- 2025-02-03
- Last updated
- 2025-09-02
- Certified
- 2025-09-02
Frequently asked questions
- What is Janet M Stier PHD Clinical Psychologist PC's NPI number?
- Janet M Stier PHD Clinical Psychologist PC's National Provider Identifier (NPI) is 1861206781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Janet M Stier PHD Clinical Psychologist PC?
- Janet M Stier PHD Clinical Psychologist PC is classified in the NPPES registry as Adolescent and Children Mental Health Clinic/Center (Ambulatory Health Care Facilities).
- Where is Janet M Stier PHD Clinical Psychologist PC located?
- Janet M Stier PHD Clinical Psychologist PC's practice location on file with NPPES is 23822 Valencia Blvd Ste 203, Valencia, CA 91355-5344.
- What is Janet M Stier PHD Clinical Psychologist PC's phone number?
- The practice phone number listed in the NPPES registry for Janet M Stier PHD Clinical Psychologist PC is (661) 310-8410.
- Does Janet M Stier PHD Clinical Psychologist PC accept Medicare?
- Janet M Stier PHD Clinical Psychologist PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Janet M Stier PHD Clinical Psychologist PC?
- The authorized official listed on Janet M Stier PHD Clinical Psychologist PC's NPPES record is Janet Stier, Clinical Psychologist/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Janet M Stier PHD Clinical Psychologist PC's NPI active?
- Yes — Janet M Stier PHD Clinical Psychologist PC's NPI (1861206781) is active in the NPPES registry as of the last update on 2025-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.