Dr. Ruth A Marx, DDS
Dr. Ruth A Marx is a General Practice Dentistry provider (Dentist) practicing in Appleton, WI, registered in the NPPES registry with NPI 1164458089 since 2006. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1164458089 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Ruth A Marx |
| Credential | DDS |
| Sex | Female |
| Practice address | 4660 W COLLEGE AVE, Appleton, WI, 54913 |
| Phone | 9207300345 |
| Enumeration date | 2006-06-23 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 4743 | WI |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: Ruth Marx, DDS NPI: 1164458089 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 4660 W COLLEGE AVE, Appleton, WI, 54913
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1568400950 | Sangkyu Han | Individual | Orthodontics and Dentofacial Orthopedics Dentistry | Appleton, WI |
| 1942243019 | John Cuddy | Individual | General Practice Dentistry | Appleton, WI |
| 1275569196 | Richard Kling | Individual | General Practice Dentistry | Appleton, WI |
| 1679501845 | Nicholas Couse | Individual | General Practice Dentistry | Appleton, WI |
| 1275561755 | Kenneth Konopka | Individual | Prosthodontics | Appleton, WI |
| 1114956729 | Bruce Dumontier | Individual | General Practice Dentistry | Appleton, WI |
| 1023048550 | Fred Cheney | Individual | General Practice Dentistry | Appleton, WI |
| 1689691560 | Gayatri Bhosale-Mohite | Individual | Pediatric Dentistry | Appleton, WI |
Verify this record
Cross-check NPI 1164458089 against the authoritative CMS record: view Dr. Ruth A Marx 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
Is this the official NPI registry?
What specialty is Ruth Marx?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2007-07-08.