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John J. Mast, MD

Geriatric Medicine
John J. Mast, MD
No patient ratings. Why not?
Why doesn't this doctor have a rating?

There is no publicly available rating for this medical professional for one of the following reasons:

  1. He or she is not employed by Penn Medicine.
  2. He or she does not see patients in a medical practice setting.
  3. He or she sees patients but has not yet received the minimum 30 patient satisfaction reviews in the past 12 months, ensuring that the rating is statistically reliable and a true reflection of patient satisfaction.

Sees Geriatrics (65+)

John J. Mast, MD

Geriatric Medicine
No patient ratings. Why not?
Why doesn't this doctor have a rating?

There is no publicly available rating for this medical professional for one of the following reasons:

  1. He or she is not employed by Penn Medicine.
  2. He or she does not see patients in a medical practice setting.
  3. He or she sees patients but has not yet received the minimum 30 patient satisfaction reviews in the past 12 months, ensuring that the rating is statistically reliable and a true reflection of patient satisfaction.

Sees Geriatrics (65+)

  • Dr. Mast is employed by or has a contract with Penn Medicine Lancaster General Health.

Not accepting new patients

Meet Dr. Mast

I work as a geriatric specialist in long term skilled nursing facilities, short term rehabilitation, and personal care. Much of my work is focused on reducing hospital readmissions.  I am also certified in medical cannabis and medication assisted treatments. 

My practice is limited to patients receiving care at skilled nursing facilities or personal care services at the communities where I provide care.

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