Dr. William Lewis, PHD
Dr. William Lewis is a Clinical Psychologist provider (Psychologist) practicing in Denver, CO, registered in the NPPES registry with NPI 1063485605 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1063485605 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. William Lewis |
| Credential | PHD |
| Sex | Male |
| Practice address | Denver, CO, 80222 |
| Phone | 3037575552 |
| Fax | 3037536397 |
| Enumeration date | 2006-02-13 |
| 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 | 705 | CO |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 07024342 | Medicaid | CO | — |
Copy-ready billing details
Provider: William Lewis, PHD NPI: 1063485605 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Denver, CO, 80222
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1871609438 | Mary Van Buskirk | Individual | Professional Counselor | Denver, CO |
| 1902943277 | Sandra Loftin | Individual | Psychiatry Physician | Denver, CO |
| 1457474264 | Karen Holland | Individual | Marriage & Family Therapist | Denver, CO |
| 1861601486 | Brandon Credeur | Individual | Chiropractor | Denver, CO |
| 1558570184 | Kristen Lee | Individual | Chiropractor | Denver, CO |
| 1609087998 | Heather Stone-Credeur | Individual | Chiropractor | Denver, CO |
| 1982894549 | Stone-Credeur Family Chiropractic, PC | Organization | Chiropractor | Denver, CO |
| 1538348867 | Bonnie Thompson | Individual | Mental Health Counselor | Denver, CO |
Verify this record
Cross-check NPI 1063485605 against the authoritative CMS record: view Dr. William Lewis 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.