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Donald Cowell, PH.D.
NPI 1417004474 · Clinical Psychologist · Newhall, CA
Donald Cowell, PH.D. is a Clinical Psychologist provider in Newhall, CA (NPI 1417004474).
Provider details
- NPI number
- 1417004474
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY13432 (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
25050 Peachland Ave Ste 255
Newhall, CA 91321-5761
Phone: (661) 257-4340
Fax: (661) 257-4340
Street-level locationGet directions
Mailing address
Po Box 802003
Santa Clarita, CA 91380-2003
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2020-08-27
- Certified
- 2020-08-27
Frequently asked questions
- What is Donald Cowell's NPI number?
- Donald Cowell's National Provider Identifier (NPI) is 1417004474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Cowell's specialty?
- Donald Cowell is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Donald Cowell located?
- Donald Cowell's practice location on file with NPPES is 25050 Peachland Ave Ste 255, Newhall, CA 91321-5761.
- What is Donald Cowell's phone number?
- The practice phone number listed in the NPPES registry for Donald Cowell is (661) 257-4340.
- Is Donald Cowell's NPI active?
- Yes — Donald Cowell's NPI (1417004474) is active in the NPPES registry as of the last update on 2020-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.