Colleen H. Tetzlaff, MHS, PA-C

Colleen Tetzlaff
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Advanced Practice Clinician

Physician Assistant


  • Adrenal Tumor
  • Bladder Cancer
  • Kidney Cancer
  • Penile Cancer
  • Prostate Cancer
  • Testicular Cancer
  • Ureteral Cancer
  • Urethral Cancer

Treatment Philosophy

It has been a privilege to care for cancer patients and their families as a Physician Assistant at Fox Chase Cancer Center since 2009.  As a Physician Assistant, I collaborate with Attending Physicians to provide compassionate, evidence-based care to patients with prostate, kidney, bladder, penile, adrenal and testicular cancers. 

My passion for oncology began when I was a nurse and cared for postoperative cancer patients on an inpatient surgical floor, followed by nursing in an outpatient surgical oncology clinic.  I entered the Duke University Physician Assistant Program knowing that I wanted to make a difference in the lives of cancer patients and become a part of the dynamic and fast-growing oncology field. 

At Fox Chase Cancer Center, we are fortunate to work with outstanding researchers that enable us to offer patients novel therapies on clinical trials.  Actively being a part of the trials that are changing how we treat cancer is exciting and invigorating.   I strive to support not only the patient, but their entire family and support network, throughout all phases of their cancer.  I am honored to be a part of the genitourinary medical oncology team and privileged to care for such inspiring patients and families every day.

Clinical Locations

  • Fox Chase Cancer Center
    333 Cottman Avenue
    Philadelphia, PA 19111
    Phone: 888-369-2427

Educational Background

  • Master of Health Sciences, Physician Assistant Certificate of Completion, Duke University Physician Assistant Program, Durham, NC, 2004
  • Bachelor of Science in Nursing, Cum Laude, Villanova University, Villanova, PA, 1996


  • National Commission on Certification of Physician Assistants, Physician Assistant - Certified, 2004 - Present
  • Physician Assistant - Certified, Pennsylvania State License


  • American Academy of Physician Assistants
  • Pennsylvania Society of Physician Assistants
  • Association of Physician Assistants in Oncology

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn more about our Patient Experience Ratings.

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