Elizabeth Twamley, PHD
NPI 1700089141 · Clinical Psychologist · San Diego, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Twamley, PHD is a Clinical Psychologist provider in San Diego, CA (NPI 1700089141).
Provider details
- NPI number
- 1700089141
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- PSY19150 (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
- 2007-06-05
- Last updated
- 2018-07-09
Frequently asked questions
- What is Elizabeth Twamley's NPI number?
- Elizabeth Twamley's National Provider Identifier (NPI) is 1700089141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Twamley's specialty?
- Elizabeth Twamley is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Elizabeth Twamley located?
- Elizabeth Twamley's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103.
- What is Elizabeth Twamley's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Twamley is (858) 534-7792.
- Does Elizabeth Twamley accept Medicare?
- Elizabeth Twamley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Twamley's NPI active?
- Yes — Elizabeth Twamley's NPI (1700089141) is active in the NPPES registry as of the last update on 2018-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.