Dr. Dianna Lynn Phares, PHD, DNP, APRN-BC
Dr. Dianna Lynn Phares is a Psychiatric/Mental Health Nurse Practitioner provider (Nurse Practitioner) practicing in Weldon Spring, MO, registered in the NPPES registry with NPI 1922335769 since 2009. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1922335769 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Dianna Lynn Phares |
| Credential | PHD, DNP, APRN-BC |
| Sex | Female |
| Practice address | Weldon Spring, MO, 63304 |
| Phone | 3145034052 |
| Fax | 6364986666 |
| Enumeration date | 2009-11-16 |
| Last updated in NPPES | 2026-01-26 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 363LF0000X | Family Nurse Practitioner | Secondary | 137634 | MO |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner | Primary | 137634 | MO |
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: Dianna Phares, PHD, DNP, APRN-BC NPI: 1922335769 Taxonomy: 363LP0808X (Psychiatric/Mental Health Nurse Practitioner) Address: Weldon Spring, MO, 63304
Verify this record
Cross-check NPI 1922335769 against the authoritative CMS record: view Dr. Dianna Lynn Phares 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 2026-01-26.