Summary

I am a strong patient advocate who constantly seeks education on best practice so that I can provide skilled and compassionate care to my patients and their families. I take the time to educate, listen and ensure patients understand their choices when it comes to their treatment plan. I like to give options so that the patient feels heard and is truly driving their plan of care. In doing so, I can support them through their cancer journey, undoubtedly the most difficult time of their lives.



I have a deep passion for oncology nursing. I was originally drawn in because of the one-on-one time I get to spend with patients and their families. Additionally, oncology is an exciting field. There are so many new and emerging treatments that improve patient outcomes and lessen the side effects.



Participating in two medical mission trips to Southeast Asia has allowed me to provide patient care that focuses on all aspects of a person’s health, including physical, emotional, spiritual and …psychosocial health. My experiences in Cambodia and Laos developed my confidence and skills to care for patients efficiently and effectively in a setting with limited resources. It has also helped me develop a sense of cultural diversity and awareness when caring for my patients.


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Quick Facts

  • accepting new patients
  • 30 insurance plans accepted
  • 2 specialties
  • 3 areas of expertise
  • 7 office locations

Office Locations

Charissa K Williams has 7 locations

ThedaCare Regional Cancer Center

2500 E Capitol DrAppleton, WI 54911
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

ThedaCare Cancer Care-Shawano

100 County Road BShawano, WI 54166
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

ThedaCare Cancer Care-Waupaca

800 Riverside DrWaupaca, WI 54981
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

ThedaCare Cancer Care-New London

1405 Mill StNew London, WI 54961
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

ThedaCare Cancer Care-Oshkosh

491 S Washburn StOshkosh, WI 54904
Mon7:30 am - 4:30 pm
Tue7:30 am - 4:30 pm
Wed7:30 am - 4:30 pm
Thu7:30 am - 4:30 pm
FriClosed
SatClosed
SunClosed

ThedaCare Cancer Care-Neenah

130 2nd StNeenah, WI 54956
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

ThedaCare Cancer Care-Berlin

225 Memorial Dr Ste 1600Berlin, WI 54923
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

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Nurse PractitionerNurse PractitionerNurse PractitionerNurse Practitioner
Accepts New Patients
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No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Appleton , WIOSHKOSH , WIGREEN BAY , WIKAUKAUNA , WI
Current Profile
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Insurance Plans Accepted by Charissa K Williams

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Allegiance Life and Health
  • Arise Health Plan
  • Assurant Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Michigan
  • CHAMPVA
  • Cigna
  • Common Ground Healthcare Cooperative
  • Dean Health Plan
  • Group Health Cooperative of Eau Claire
  • HealthPartners
  • Humana
  • Medica
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - Medicaid (Managed)
  • Network Health Plan
  • Physicians Mutual
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • UnitedHealthOne
  • Unity Health Insurance
  • WPS Health Plan

Medical Specialties

Charissa K Williams has the following 2 specialties

Specialty Expertise

Charissa K Williams has the following 3 areas of expertise

  • Hematology/oncology
  • Oncology/hematology
  • Registered Nurse

Certifications, License, & Education

Charissa K Williams holds an expired medical license in the state of Wisconsin.

Medical License

Nurse Practitioner with an expired medical license in the state of Wisconsin that expired in 2026.

NPI Number

Charissa K Williams' NPI number is 1700426079.

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Frequently Asked Questions

How can I make an appointment with Charissa Williams?
You can find contact information for Charissa Williams here on Vitals.
Is Charissa Williams accepting new patients?
Charissa Williams is accepting new patients on Vitals. View Charissa Williams's profile on Vitals to make an appointment.
Does Charissa Williams accept virtual/telehealth appointments?
Charissa Williams has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Charissa Williams accept my insurance?
You can see the insurance plans that Charissa Williams accepts on their Vitals profile.
Where is Charissa Williams's office located?
Charissa Williams's office is located at 2500 E Capitol Dr, Appleton, WI, 54911.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry

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