Thomas P Williams, DDS
Thomas P Williams is a Dentist provider (Dentist) practicing in Dubuque, IA, registered in the NPPES registry with NPI 1780678466 since 2005. The credential DDS stands for Doctor of Dental Surgery. Practices at Great River Oral and Maxillofacial Surgery PC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1780678466 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Thomas P Williams |
| Credential | DDS |
| Sex | Male |
| Practice address | Dubuque, IA, 52003 |
| Phone | 5635571440 |
| Fax | 5635577001 |
| Enumeration date | 2005-09-08 |
| Last updated in NPPES | 2026-03-27 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Secondary | 23154 | CA |
| 122300000X | Dentist | Secondary | 5000989015 | WI |
| 122300000X | Dentist | Primary | 05935 | IA |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 09100 | Other | IA | BCBS DELTA DENTAL |
| 33570400 | Medicaid | WI | — |
| 0091009 | Medicaid | IA | — |
Copy-ready billing details
Provider: Thomas Williams, DDS NPI: 1780678466 Taxonomy: 122300000X (Dentist) Address: Dubuque, IA, 52003
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1821082744 | Daryl Bee | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
| 1992799811 | Great River Oral and Maxillofacial Surgery PC | Organization | Oral and Maxillofacial Surgery Clinic/Center | Dubuque, IA |
| 1124012059 | Michael Dalton | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
| 1922092865 | Paul Delong | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
| 1235123936 | Andrew Dewitt | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
| 1942287875 | Thomas King | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
| 1326245796 | Kimberly Pingel | Individual | Oral and Maxillofacial Surgery (Dentist) | Dubuque, IA |
Verify this record
Cross-check NPI 1780678466 against the authoritative CMS record: view Thomas P Williams 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 2026-03-27.