William N. Fenney, MD

Internal Medicine
35 Cedar Street
Hyannis, MA 02601 Get Directions
William N. Fenney, MD
More information available

Annual Membership Fee

495.00 every 3 months
990.00 every 6 months
1,980.00 each year


 It is important, now more than ever, to have a primary care doctor who has the time and resources to care for you personally and proactively. Watch this video to hear more.

Read more about all the unique benefits and services you can experience as a member in the practice.

Dr. Fenney's Credentials

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Carney Hospital
Dorchester, MA
Critical Care Medicine 1982-1983

Carney Hospital
Boston, MA 
Internal Medicine 1980-1982

Carney Hospital
Boston, MA 

Medical School:
University of Guadalajara 
Guadalajara, Jal. Mexico 

New York Medical College
Valhalla, NY 

Monmouth College
Monmouth, IL
Bachelor of Arts, Biology 1973

American Board of Internal Medicine 
Cape Cod Hospital
Attending Staff Physician, Cape Cod Hospital 1984-present
Tennis, gardening, cooking, surf fishing, skiing and musical instruments

Testimonials from patients of Dr. Fenney

from amy in MA April 21, 2024 for William N. Fenney, MD

The best medical care!! Dr fenney always has time to see me or explain what is needed!! His staff always gets me appointments.. no matter what the problem!! This year I had breast cancer and heart surgery.. 3 stents!! I needed compassion, explanation and treatment plan!! Dr fenney took care of everything!! Dr fenney is knowledgeable about all medicine!! I rate him the best doctor, because.. he… See more

from Ron in MA February 12, 2024 for William N. Fenney, MD

The one thing that is important to me is communication. I appreciate Dr Fenney, his answering service, and his staff for always promptly responding to any calls I have had to make concerning my medical concerns. It makes me comfortable knowing he is always available.

from Dianne in MA February 10, 2024 for William N. Fenney, MD

When I had my hysterectomy, I didn’t think to tell Dr. Fenney, my primary care doctor. I stayed over night, and when I woke up at 6 am, he was standing at the foot of my bed with my chart in his hand. He had seen my name on a patient list and dropped by to check on me. This gesture made me feel good that he cared. I have always felt the Dr. Fenney does truly care about his patients. I’m never… See more

from earl in MA January 26, 2024 for William N. Fenney, MD

Both my wife and I have the pleasure and great care of Dr. Fenney. As an older couple we have had to deal with Cancer Dementia, Barretts Syndrome and other maladies which he has dealt with personally or referrals to specialist that also have provided great care, He is also readily available in person or Facetime. We are confident in his care and great staff as we start our 3rd decade as his… See more

from Mark in MA January 20, 2024 for William N. Fenney, MD
Image provided by: Mark

We had moved to a new town and had trouble finding a doctor to care for us. I joined the waiting list for Dr. Fenney and after a few months wait I was able to see him as my prim are doctor. In the interim, I had a new doctor through a local clinic and I was made to feel that everything was a crisis and that my depression and anxiety with health professionals was unimportant. I felt so old at… See more

from amy in MA January 20, 2024 for William N. Fenney, MD

Dr fenney, has been my dr for many years!! This year was not easy for me being diagnosed with stage 1 breast cancer followed by heart surgery with 3 stents!! Dr fenney got me with great drs.. he saw me constantly while trying to finalize my heart issue.. where everyone thought it was related to recovery from breast cancer!! Compassionate, caring, superb at diagnosis!! He treated me with… See more

from Frank in MA January 19, 2024 for William N. Fenney, MD

As I’ve grown older, I worry more about what my next physical will reveal. Doctor Fenney alleviates my stress by his friendly, professional bearing. We joke about “ How well” I carry my weight, and at the same time Dr. Fenney offers personal advice(“I got a Covid and flu shot together— I was sick as a dog— don’t do it”), personal anecdotes like stories about his sailboat, and straightforward… See more

from Amy in MA July 23, 2023 for William N. Fenney, MD

Knowledgeable, compassionate, kind, always sees me for any little problem I have!! Asks the right questions.. never jumps to the most invasive treatment… research’s the best treatment. There is no better doctor anywhere.. that is why I rate him the number 1 cape cod dr!!