Expertise in
13
conditions

Dr. Shirnett K. Williamson

Radiation Oncology
625 N 6th Street, 
Phoenix, AZ 
Clinical Trials:Currently Recruiting for 1 Trial
Accepting New Patients
Referral may be required
Before you request
Expertise in
13
conditions
625 N 6th Street, 
Phoenix, AZ 

Overview

Shirnett Williamson is a Radiation Oncologist practicing medicine in Phoenix, Arizona.

Dr. Williamson is highly rated in 13 conditions, according to our data. Her clinical expertise encompasses Posterior Fossa Tumor, Radiation Induced Meningioma, Meningioma, and Endometrial Cancer.

She is actively involved in clinical research, co-authoring 2 peer reviewed articles and participating in 7 clinical trials. Dr. Williamson is currently accepting new patients.

Specialties

Radiation Oncology

Licenses

Radiology in AZ

Hospital Affiliations

Kingman Regional Medical Center

Languages Spoken

English
Spanish

Gender

Female

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Health Partners Plans
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 1 Less Insurance Carrier -

Locations

Dignity Health Cancer Institute at St. Joseph's
625 N 6th Street, Phoenix, AZ 85004

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

7 Clinical Trials

A Phase III Clinical Trial Evaluating De-Escalation of Breast Radiation for Conservative Treatment of Stage I, Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer
A Phase III Clinical Trial Evaluating De-Escalation of Breast Radiation for Conservative Treatment of Stage I, Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer
Enrollment Status: Recruiting
Publish Date: April 23, 2026
Intervention Type: Drug, Other
Study Phase: Phase 3
A Randomized Phase III Trial Comparing Axillary Lymph Node Dissection to Axillary Radiation in Breast Cancer Patients (cT1-3 N1) Who Have Positive Sentinel Lymph Node Disease After Neoadjuvant Chemotherapy
A Randomized Phase III Trial Comparing Axillary Lymph Node Dissection to Axillary Radiation in Breast Cancer Patients (cT1-3 N1) Who Have Positive Sentinel Lymph Node Disease After Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: August 31, 2026
Intervention Type: Radiation, Procedure
Study Phase: Phase 3
Randomized Phase II Trial of Hypofractionated Dose-Escalated Photon IMRT or Proton Beam Therapy Versus Conventional Photon Irradiation With Concomitant and Adjuvant Temozolomide in Patients With Newly Diagnosed Glioblastoma
Randomized Phase II Trial of Hypofractionated Dose-Escalated Photon IMRT or Proton Beam Therapy Versus Conventional Photon Irradiation With Concomitant and Adjuvant Temozolomide in Patients With Newly Diagnosed Glioblastoma
Enrollment Status: Active_not_recruiting
Publish Date: August 28, 2026
Intervention Type: Radiation, Drug
Study Drug: Temozolomide
Study Phase: Phase 2
A Phase II Randomized Trial of Olaparib (NSC-747856) Administered Concurrently With Radiotherapy Versus Radiotherapy Alone for Inflammatory Breast Cancer
A Phase II Randomized Trial of Olaparib (NSC-747856) Administered Concurrently With Radiotherapy Versus Radiotherapy Alone for Inflammatory Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: July 02, 2026
Intervention Type: Drug, Procedure, Radiation, Other
Study Drug: Olaparib
Study Phase: Phase 2
MRI Brain Surveillance Alone Versus MRI Surveillance and Prophylactic Cranial Irradiation (PCI): A Randomized Phase III Trial in Small-Cell Lung Cancer (MAVERICK)
MRI Brain Surveillance Alone Versus MRI Surveillance and Prophylactic Cranial Irradiation (PCI): A Randomized Phase III Trial in Small-Cell Lung Cancer (MAVERICK)
Enrollment Status: Active_not_recruiting
Publish Date: June 11, 2026
Intervention Type: Procedure, Radiation
Study Phase: Phase 3
A Randomized Phase III Trial of Induction/Consolidation Atezolizumab (NSC #783608) + SBRT Versus SBRT Alone in High Risk, Early Stage NSCLC
A Randomized Phase III Trial of Induction/Consolidation Atezolizumab (NSC #783608) + SBRT Versus SBRT Alone in High Risk, Early Stage NSCLC
Enrollment Status: Active_not_recruiting
Publish Date: June 11, 2026
Intervention Type: Other, Drug, Procedure, Radiation
Study Drug: Atezolizumab
Study Phase: Phase 3
A Randomized Phase III Clinical Trial Evaluating Post-Mastectomy Chestwall and Regional Nodal XRT and Post-Lumpectomy Regional Nodal XRT in Patients With Positive Axillary Nodes Before Neoadjuvant Chemotherapy Who Convert to Pathologically Negative Axillary Nodes After Neoadjuvant Chemotherapy
A Randomized Phase III Clinical Trial Evaluating Post-Mastectomy Chestwall and Regional Nodal XRT and Post-Lumpectomy Regional Nodal XRT in Patients With Positive Axillary Nodes Before Neoadjuvant Chemotherapy Who Convert to Pathologically Negative Axillary Nodes After Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: December 27, 2023
Intervention Type: Radiation
Study Phase: Not Applicable
View 6 Less Clinical Trials

2 Total Publications

10-yr Survival and Toxicity Outcomes of Stereotactic Body Radiotherapy for Prostate Cancer: A Nonrandomized Clinical Trial.
10-yr Survival and Toxicity Outcomes of Stereotactic Body Radiotherapy for Prostate Cancer: A Nonrandomized Clinical Trial.
Journal: European urology
Published: October 06, 2025
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Frequently Asked Questions about Dr. Shirnett K. Williamson

How do I make an appointment with Dr. Shirnett K. Williamson?

You can book an appointment with Dr. Shirnett K. Williamson by calling their office at 602-406-8222. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Shirnett K. Williamson a top-rated expert for Posterior Fossa Tumor?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Shirnett K. Williamson is classified as an Distinguished expert for Posterior Fossa Tumor, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Shirnett K. Williamson specialize in?

While Dr. Shirnett K. Williamson is a Radiation Oncology, they have specific expertise in Posterior Fossa Tumor, Radiation Induced Meningioma, and Meningioma. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Radiation Oncology.

Does Dr. Shirnett K. Williamson participate in research or clinical trials?

Yes. Dr. Shirnett K. Williamson has published 2 articles and abstracts on conditions like Posterior Fossa Tumor. You can view a list of Dr. Shirnett K. Williamson's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Shirnett K. Williamson accept my insurance?

Dr. Shirnett K. Williamson accepts most major insurance plans, including Blue Cross Blue Shield and Health Partners Plans. We recommend calling the office directly at 602-406-8222 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

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