Advanced in WT1-Related Wilms Tumor Syndromes

Dr. Zachary W. Klaassen

General Surgery | Urology
Wellstar
Wellstar Medical Group LLC
5150 Stilesboro N W Rd, Suite 220, 
Kennesaw, GA 
Accepting New Patients
Offers Telehealth

Advanced in WT1-Related Wilms Tumor Syndromes
Wellstar
Wellstar Medical Group LLC
5150 Stilesboro N W Rd, Suite 220, 
Kennesaw, GA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Zachary Klaassen is a General Surgeon and an Urologist in Kennesaw, Georgia. Dr. Klaassen is rated as an Advanced provider by MediFind in the treatment of WT1-Related Wilms Tumor Syndromes. His top areas of expertise are Prostate Cancer, Bladder Cancer, Renal Cell Carcinoma (RCC), Prostatectomy, and Nephrectomy. Dr. Klaassen is currently accepting new patients.

His clinical research consists of co-authoring 297 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Specialties
General Surgery
Urology
Licenses
Urology in GA
Hospital Affiliations
Wills Memorial Hospital
Wellstar Mcg Health, Affiliated With Med Col
Languages Spoken
English
Gender
Male

Insurance

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

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Cigna
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Oscar
  • EPO
  • HMO
  • 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 6 Less Insurance Carriers -

Locations

WELLSTAR MEDICAL GROUP LLC
5150 Stilesboro N W Rd, Suite 220, Kennesaw, GA 30152
Call: 770-424-8222
Other Locations
WELLSTAR MEDICAL GROUP LLC
1120 15th St, Augusta, GA 30912
Call: 706-721-8623
WELLSTAR MEDICAL GROUP LLC
989 Saint Sebastian Way, Augusta, GA 30912
Call: 706-721-2171

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.


297 Total Publications

Enzalutamide treatment of patients with advanced prostate cancer across the disease spectrum: plain language review.
Enzalutamide treatment of patients with advanced prostate cancer across the disease spectrum: plain language review.
Journal: Future oncology (London, England)
Published: June 30, 2025
View All 297 Publications
Similar Doctors
Distinguished in WT1-Related Wilms Tumor Syndromes
Dr. Martha K. Terris
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Distinguished in WT1-Related Wilms Tumor Syndromes
Dr. Martha K. Terris
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Wellstar Medical Group LLC

5150 Stilesboro N W Rd, Suite 220, 
Kennesaw, GA 
 (0.1 miles away)
770-424-8222
Languages Spoken:
English, Spanish
See accepted insurances
Accepting New Patients
Offers Telehealth

Martha Terris is an Urologist in Kennesaw, Georgia. Dr. Terris is rated as an Elite provider by MediFind in the treatment of WT1-Related Wilms Tumor Syndromes. Her top areas of expertise are Prostate Cancer, Bladder Cancer, Renal Cell Carcinoma (RCC), Prostatectomy, and Nephrectomy. Dr. Terris is currently accepting new patients.

Kenneth Ogan
Distinguished in WT1-Related Wilms Tumor Syndromes
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Experience:
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Kenneth Ogan is an Urologist in Atlanta, Georgia. Dr. Ogan has been practicing medicine for over 30 years and is rated as an Elite provider by MediFind in the treatment of WT1-Related Wilms Tumor Syndromes. His top areas of expertise are Renal Cell Carcinoma (RCC), Ureterocele, WT1-Related Wilms Tumor Syndromes, Nephrectomy, and Ureteroscopy.

Distinguished in WT1-Related Wilms Tumor Syndromes
Dr. Adamantios M. Mellis
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Distinguished in WT1-Related Wilms Tumor Syndromes
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1357 Hembree Rd, Suite 250, 
Roswell, GA 
 (22.4 miles away)
770-475-7550
Languages Spoken:
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Accepting New Patients
Offers Telehealth

Adamantios Mellis is an Urologist in Roswell, Georgia. Dr. Mellis is rated as a Distinguished provider by MediFind in the treatment of WT1-Related Wilms Tumor Syndromes. His top areas of expertise are WT1-Related Wilms Tumor Syndromes, Chromophobe Renal Cell Carcinoma, Renal Cell Carcinoma (RCC), Ureteroscopy, and Reconstructive Urology Surgery. Dr. Mellis is currently accepting new patients.

VIEW MORE WT1-RELATED WILMS TUMOR SYNDROMES DOCTORS

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.

Learn more about MediFind’s expert tiers

Find Dr. Klaassen's expertise for a condition
ConditionClose
  • Elite
  • Bladder Cancer
    Dr. Klaassen is
    Elite
    . Learn about Bladder Cancer.
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  • Prostate Cancer
    Dr. Klaassen is
    Elite
    . Learn about Prostate Cancer.
    See more Prostate Cancer experts
  • Distinguished
  • Cystectomy
    Dr. Klaassen is
    Distinguished
    . Learn about Cystectomy.
    See more Cystectomy experts
  • Familial Prostate Cancer
    Dr. Klaassen is
    Distinguished
    . Learn about Familial Prostate Cancer.
    See more Familial Prostate Cancer experts
  • Hydronephrosis
    Dr. Klaassen is
    Distinguished
    . Learn about Hydronephrosis.
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  • Intussusception in Children
    Dr. Klaassen is
    Distinguished
    . Learn about Intussusception in Children.
    See more Intussusception in Children experts
  • Muscle Invasive Bladder Cancer
    Dr. Klaassen is
    Distinguished
    . Learn about Muscle Invasive Bladder Cancer.
    See more Muscle Invasive Bladder Cancer experts
  • Nephrectomy
    Dr. Klaassen is
    Distinguished
    . Learn about Nephrectomy.
    See more Nephrectomy experts
View All 15 Distinguished Conditions
  • Advanced
  • Adult Soft Tissue Sarcoma
    Dr. Klaassen is
    Advanced
    . Learn about Adult Soft Tissue Sarcoma.
    See more Adult Soft Tissue Sarcoma experts
  • Bilateral Hydronephrosis
    Dr. Klaassen is
    Advanced
    . Learn about Bilateral Hydronephrosis.
    See more Bilateral Hydronephrosis experts
  • Chromophobe Renal Cell Carcinoma
    Dr. Klaassen is
    Advanced
    . Learn about Chromophobe Renal Cell Carcinoma.
    See more Chromophobe Renal Cell Carcinoma experts
  • Clear Cell Sarcoma
    Dr. Klaassen is
    Advanced
    . Learn about Clear Cell Sarcoma.
    See more Clear Cell Sarcoma experts
  • Congenital Mesoblastic Nephroma
    Dr. Klaassen is
    Advanced
    . Learn about Congenital Mesoblastic Nephroma.
    See more Congenital Mesoblastic Nephroma experts
  • Enlarged Prostate (BPH)
    Dr. Klaassen is
    Advanced
    . Learn about Enlarged Prostate (BPH).
    See more Enlarged Prostate (BPH) experts
View All 12 Advanced Conditions
  • Experienced
  • Adrenal Cancer
    Dr. Klaassen is
    Experienced
    . Learn about Adrenal Cancer.
    See more Adrenal Cancer experts
  • Adrenocortical Carcinoma
    Dr. Klaassen is
    Experienced
    . Learn about Adrenocortical Carcinoma.
    See more Adrenocortical Carcinoma experts
  • Anal Cancer
    Dr. Klaassen is
    Experienced
    . Learn about Anal Cancer.
    See more Anal Cancer experts
  • Bladder Reconstruction
    Dr. Klaassen is
    Experienced
    . Learn about Bladder Reconstruction.
    See more Bladder Reconstruction experts
  • Bladder Stones
    Dr. Klaassen is
    Experienced
    . Learn about Bladder Stones.
    See more Bladder Stones experts
  • Boils
    Dr. Klaassen is
    Experienced
    . Learn about Boils.
    See more Boils experts
View All 33 Experienced Conditions
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