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Mary Heffernan, ARNP

Nursing (Nurse Practitioner) ·  Female · Age 60

Mary Heffernan

Overlake Medical Clinics/Overlake Hospital Cancer Center

1135 116th Ave NE Ste 180 Bellevue, WA 98004

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Mary Heffernan, ARNP is a nurse practitioner in Bellevue, WA and has been practicing for 10 years. She graduated from University of Washington in 2009 and specializes in nursing (nurse practitioner) and breast surgical oncology.

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Background Check

Healthgrades does not collect malpractice claims information for Washington
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check if Mary Heffernan treats your condition or procedure

Mary Heffernan's conditions and procedures:

  • Abscess Incision and Drainage
  • Breast Cancer
  • Breast Diseases
  • Physical Examination
  • Skin Biopsy

About Me

Treat each of my patients with the same level of care and compassion as I would for a member of my family.


  • Nursing (Nurse Practitioner)
  • Breast Surgical Oncology


University of Washington
Medical School
Seattle University
Undergraduate School

Mary Heffernan's Reviews

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Average Reported Wait Time
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Mary Heffernan's Performance
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What People Say About Mary Heffernan, ARNP
Mary J Heffernan is a gifted, compassionate, talented health care provider in the oncology field. In caring for me she is friendly, reassuring and helpful.. Mary has always been available to me when necessary in a very reasonable time frame. I put great trust in her.
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Mary Heffernan- AKA Muff, is one of the most incredible people I have met, EVER!!!! She's not just an exceptional NP, she's an exceptional person who really cares about people. I strongly believe Muff's TLC & a much needed understanding of 'me' as a person not a statistic, has been the biggest part of my healing!!! Even years later I have come to Muff in much need of her medical wisdom & directions for more healing. Because of Muff's TLC, I'm living life, not just surviving it! ?? ??????
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Overlake Medical Clinics/Overlake Hospital Cancer Center

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