Nicolle Napier-Ionascu Psyd, a Psychological Corporation
NPI 1790321347 · Clinical Neuropsychologist · Pleasant Hill, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicolle Napier-Ionascu Psyd, a Psychological Corporation is a Clinical Neuropsychologist organization in Pleasant Hill, CA (NPI 1790321347).
Provider details
- NPI number
- 1790321347
- Entity type
- Organization
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Nicolle Napier-Ionascu, President(925) 588-8895
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Clinical Psychologist103TC0700X
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
6 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
Other names (DBA / former)
- Doing business as
- Diablo Valley Neuropsychology
Registry dates
- Enumerated
- 2019-11-19
- Last updated
- 2019-11-19
Frequently asked questions
- What is Nicolle Napier-Ionascu Psyd, a Psychological Corporation's NPI number?
- Nicolle Napier-Ionascu Psyd, a Psychological Corporation's National Provider Identifier (NPI) is 1790321347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nicolle Napier-Ionascu Psyd, a Psychological Corporation?
- Nicolle Napier-Ionascu Psyd, a Psychological Corporation is classified in the NPPES registry as Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Nicolle Napier-Ionascu Psyd, a Psychological Corporation located?
- Nicolle Napier-Ionascu Psyd, a Psychological Corporation's practice location on file with NPPES is 400 Taylor Blvd Ste 300c, Pleasant Hill, CA 94523-2160.
- What is Nicolle Napier-Ionascu Psyd, a Psychological Corporation's phone number?
- The practice phone number listed in the NPPES registry for Nicolle Napier-Ionascu Psyd, a Psychological Corporation is (925) 588-8895.
- Does Nicolle Napier-Ionascu Psyd, a Psychological Corporation accept Medicare?
- Nicolle Napier-Ionascu Psyd, a Psychological Corporation 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 Nicolle Napier-Ionascu Psyd, a Psychological Corporation?
- The authorized official listed on Nicolle Napier-Ionascu Psyd, a Psychological Corporation's NPPES record is Nicolle Napier-Ionascu, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nicolle Napier-Ionascu Psyd, a Psychological Corporation's NPI active?
- Yes — Nicolle Napier-Ionascu Psyd, a Psychological Corporation's NPI (1790321347) is active in the NPPES registry as of the last update on 2019-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.