Elizabeth Loi, PHD
NPI 1598221939 · Clinical Child & Adolescent Psychologist · Palo Alto, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Loi, PHD is a Clinical Child & Adolescent Psychologist provider in Palo Alto, CA (NPI 1598221939).
Provider details
- NPI number
- 1598221939
- Entity type
- Individual
- Primary specialty
- Clinical Child & Adolescent PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
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
7 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)
- 401 Quarry RdPalo Alto, CA 94304-1419Phone: (650) 723-5511
Registry dates
- Enumerated
- 2019-02-11
- Last updated
- 2024-11-27
- Certified
- 2024-11-27
Frequently asked questions
- What is Elizabeth Loi's NPI number?
- Elizabeth Loi's National Provider Identifier (NPI) is 1598221939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Loi's specialty?
- Elizabeth Loi is listed in the NPPES registry with a primary specialty of Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers).
- Where is Elizabeth Loi located?
- Elizabeth Loi's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Elizabeth Loi's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Loi is (650) 497-8000.
- Does Elizabeth Loi accept Medicare?
- Elizabeth Loi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Loi's NPI active?
- Yes — Elizabeth Loi's NPI (1598221939) is active in the NPPES registry as of the last update on 2024-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.