IndividualActive
Kenneth Grebel, PH.D.
NPI 1013003813 · Clinical Psychologist · Santa Ana, CA
Kenneth Grebel, PH.D. is a Clinical Psychologist provider in Santa Ana, CA (NPI 1013003813).
Provider details
- NPI number
- 1013003813
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY 10779 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
405 W 5th St Ste 590
Santa Ana, CA 92701-4519
Phone: (714) 834-5015
Street-level locationGet directions
Mailing address
405 W 5th St
Santa Ana, CA 92701-4519
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Kenneth Grebel's NPI number?
- Kenneth Grebel's National Provider Identifier (NPI) is 1013003813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Grebel's specialty?
- Kenneth Grebel is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Kenneth Grebel located?
- Kenneth Grebel's practice location on file with NPPES is 405 W 5th St Ste 590, Santa Ana, CA 92701-4519.
- What is Kenneth Grebel's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Grebel is (714) 834-5015.
- Is Kenneth Grebel's NPI active?
- Yes — Kenneth Grebel's NPI (1013003813) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.