Lya Chapman
NPI 1689744658 · Clinical Psychologist · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lya Chapman is a Clinical Psychologist provider in Santa Rosa, CA (NPI 1689744658).
Provider details
- NPI number
- 1689744658
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 27368 (CA)
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
19 yrs 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
- 2006-11-08
- Last updated
- 2016-04-27
Frequently asked questions
- What is Lya Chapman's NPI number?
- Lya Chapman's National Provider Identifier (NPI) is 1689744658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lya Chapman's specialty?
- Lya Chapman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Lya Chapman located?
- Lya Chapman's practice location on file with NPPES is 1330 N Dutton Ave, Santa Rosa, CA 95401-4646.
- What is Lya Chapman's phone number?
- The practice phone number listed in the NPPES registry for Lya Chapman is (707) 327-2811.
- Does Lya Chapman accept Medicare?
- Lya Chapman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lya Chapman's NPI active?
- Yes — Lya Chapman's NPI (1689744658) is active in the NPPES registry as of the last update on 2016-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.