H. Keith Massel, PH.D.
NPI 1558616201 · Psychologist · Newhall, CA
H. Keith Massel, PH.D. is a Psychologist provider in Newhall, CA (NPI 1558616201).
Provider details
- NPI number
- 1558616201
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1-17-25003 (CA)
Specialties & taxonomies
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
13 yrs in NPPES registry
- Profile completeness38% of score
100% 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)
- 317 W Main St Ste 311Alhambra, CA 91801-7403Phone: (661) 425-7066Fax: (805) 299-4505
Registry dates
- Enumerated
- 2012-07-18
- Last updated
- 2020-03-09
- Certified
- 2020-03-09
Frequently asked questions
- What is H. Keith Massel's NPI number?
- H. Keith Massel's National Provider Identifier (NPI) is 1558616201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is H. Keith Massel's specialty?
- H. Keith Massel is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is H. Keith Massel located?
- H. Keith Massel's practice location on file with NPPES is 23030 Lyons Ave Ste 200, Newhall, CA 91321-2754.
- What is H. Keith Massel's phone number?
- The practice phone number listed in the NPPES registry for H. Keith Massel is (661) 425-7066.
- Is H. Keith Massel's NPI active?
- Yes — H. Keith Massel's NPI (1558616201) is active in the NPPES registry as of the last update on 2020-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.