Nancy Williger Phd LLC
Nancy Williger Phd LLC is a healthcare organization registered as Preferred Provider Organization in Saint Louis, MO, holding Type 2 (organization) NPI 1508185687 since 2010. The authorized official on file is Nancy Williger, President/Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1508185687 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Nancy Williger Phd LLC |
| Practice address | 745 OLD FRONTENAC SQ STE 201, Saint Louis, MO, 63131 |
| Phone | 3149934001 |
| Fax | 3149935424 |
| Enumeration date | 2010-05-27 |
| Last updated in NPPES | 2010-05-27 |
Authorized official
| Name | Nancy Williger |
|---|---|
| Title | President/Owner |
| Phone | 3149934001 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 305R00000X | Preferred Provider Organization | Primary | 01336 | MO |
Copy-ready billing details
Provider: Nancy Williger Phd LLC NPI: 1508185687 Taxonomy: 305R00000X (Preferred Provider Organization) Address: 745 OLD FRONTENAC SQ STE 201, Saint Louis, MO, 63131
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1952791956 | Spectrum Psychiatry, P.C. | Organization | Psychiatry Physician | Saint Louis, MO |
Verify this record
Cross-check NPI 1508185687 against the authoritative CMS record: view Nancy Williger Phd LLC 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 2010-05-27.