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Glenn Mcclellan, PH.D.
NPI 1639374804 · Clinical Psychologist · Tustin, CA
Glenn Mcclellan, PH.D. is a Clinical Psychologist provider in Tustin, CA (NPI 1639374804).
Provider details
- NPI number
- 1639374804
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY14169 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 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
14751 Plaza Dr
Suite F
Tustin, CA 92780-2702
Phone: (714) 289-8876
Fax: (714) 544-4472
Street-level locationGet directions
Mailing address
7423 E Blackberry Cv
Orange, CA 92869-4518
Registry dates
- Enumerated
- 2007-06-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Glenn Mcclellan's NPI number?
- Glenn Mcclellan's National Provider Identifier (NPI) is 1639374804, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Mcclellan's specialty?
- Glenn Mcclellan is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Glenn Mcclellan located?
- Glenn Mcclellan's practice location on file with NPPES is 14751 Plaza Dr, Tustin, CA 92780-2702.
- What is Glenn Mcclellan's phone number?
- The practice phone number listed in the NPPES registry for Glenn Mcclellan is (714) 289-8876.
- Is Glenn Mcclellan's NPI active?
- Yes — Glenn Mcclellan's NPI (1639374804) 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.