Alexa Walthall, PHD
NPI 1316420607 · Psychologist · Rancho Santa Margarita, CA
Alexa Walthall, PHD is a Psychologist provider in Rancho Santa Margarita, CA (NPI 1316420607).
Provider details
- NPI number
- 1316420607
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY21939 (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
7 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
- 2018-09-12
- Last updated
- 2018-09-12
Frequently asked questions
- What is Alexa Walthall's NPI number?
- Alexa Walthall's National Provider Identifier (NPI) is 1316420607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexa Walthall's specialty?
- Alexa Walthall is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Alexa Walthall located?
- Alexa Walthall's practice location on file with NPPES is 29863 Santa Margarita Pkwy Ste 100, Rancho Santa Margarita, CA 92688-3625.
- What is Alexa Walthall's phone number?
- The practice phone number listed in the NPPES registry for Alexa Walthall is (949) 713-3188.
- Is Alexa Walthall's NPI active?
- Yes — Alexa Walthall's NPI (1316420607) is active in the NPPES registry as of the last update on 2018-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.