Charissa K Williams, APNP
Charissa K Williams is a Family Nurse Practitioner provider (Nurse Practitioner) practicing in Appleton, WI, registered in the NPPES registry with NPI 1700426079 since 2020.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1700426079 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Charissa K Williams |
| Credential | APNP |
| Sex | Female |
| Practice address | 2500 E CAPITOL DRIVE, Appleton, WI, 54911 |
| Phone | 9203643600 |
| Fax | 9203643900 |
| Enumeration date | 2020-01-14 |
| Last updated in NPPES | 2020-01-31 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 163W00000X | Registered Nurse | Secondary | 197423 | WI |
| 363LF0000X | Family Nurse Practitioner | Primary | 9855 | WI |
Copy-ready billing details
Provider: Charissa Williams, APNP NPI: 1700426079 Taxonomy: 363LF0000X (Family Nurse Practitioner) Address: 2500 E CAPITOL DRIVE, Appleton, WI, 54911
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1124186721 | Michael Maguire | Individual | Critical Care Medicine (Internal Medicine) Physician | Appleton, WI |
Verify this record
Cross-check NPI 1700426079 against the authoritative CMS record: view Charissa K 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 2020-01-31.