Dr. David Frederick Willat, DC
Dr. David Frederick Willat is a Independent Medical Examiner Chiropractor provider (Chiropractor) practicing in Santa Rosa, CA, registered in the NPPES registry with NPI 1104160795 since 2012. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1104160795 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. David Frederick Willat |
| Credential | DC |
| Sex | Male |
| Practice address | Santa Rosa, CA, 95409 |
| Phone | 7075371036 |
| Fax | 7075371261 |
| Enumeration date | 2012-11-20 |
| Last updated in NPPES | 2012-11-20 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111NI0013X | Independent Medical Examiner Chiropractor | Primary | 16088 | CA |
| 111NX0800X | Orthopedic Chiropractor | Secondary | 16088 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: David Willat, DC NPI: 1104160795 Taxonomy: 111NI0013X (Independent Medical Examiner Chiropractor) Address: Santa Rosa, CA, 95409
Verify this record
Cross-check NPI 1104160795 against the authoritative CMS record: view Dr. David Frederick Willat 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 2012-11-20.