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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. John Demenkoff:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. John Demenkoff is Average. Dr. Demenkoff has been reviewed by 2 patients who have provided 1 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 1.0
Promptness 1.0
Courteous Staff 1.0
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0

Specialties & Research

Dr. John Demenkoff, MD is board certified in Internal Medicine and Pulmonary Disease.

  • He has special expertise in 2 areas:
  • Asthma
  • Exercise

Education & Awards

Dr. Demenkoff graduated from Harvard University , Boston.


Dr. Demenkoff has 2 hospital affiliations:

  • Mayo Clinic Hospital 
  • Mayo Clinic - Arizona 

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Additional Information
Dr. John Haynes Demenkoff MD is a male Internist, has 37 years of experience and practices in Internal Medicine and Pulmonary Disease.
Where does Dr. John H. Demenkoff practice?
Dr. John Demenkoff has 1 office location.
Dr. John Demenkoff practices Internal Medicine and Pulmonary Disease near Phoenix, AZ.
See Phoenix Internists and Phoenix Pulmonologists.