Dr. Glenn Earle Mcclellan II, PH.D.
Dr. Glenn Earle Mcclellan II is a Clinical Psychologist provider (Psychologist) practicing in Tustin, CA, registered in the NPPES registry with NPI 1639374804 since 2007. The credential PHD stands for Doctor of Philosophy. Practices at Inner Peace Psychotherapy, PC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1639374804 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Glenn Earle Mcclellan II |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Tustin, CA, 92780 |
| Phone | 7142898876 |
| Fax | 7145444472 |
| Enumeration date | 2007-06-18 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | PSY14169 | CA |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: Glenn Mcclellan, PH.D. NPI: 1639374804 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Tustin, CA, 92780
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1922022250 | Brenda Gesell | Individual | Marriage & Family Therapist | Tustin, CA |
| 1558434035 | Kim Khazeni | Individual | Clinical Social Worker | Tustin, CA |
| 1487867933 | Jinice Beacon | Individual | Marriage & Family Therapist | Tustin, CA |
| 1992916407 | Daniel Gustafson | Individual | Marriage & Family Therapist | Tustin, CA |
| 1053621177 | Daniel Tucker | Individual | Psychologist | Tustin, CA |
| 1114277365 | Ariana Kenney | Individual | Marriage & Family Therapist | Tustin, CA |
| 1598179814 | Inner Peace Psychotherapy, PC | Organization | Community/Behavioral Health Agency | Tustin, CA |
Verify this record
Cross-check NPI 1639374804 against the authoritative CMS record: view Dr. Glenn Earle Mcclellan II on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.