Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. John Aristotle Damianos, MD

Individual provider Gastroenterology Physician · NPI 1265061444

Dr. John Aristotle Damianos, MD is a Gastroenterology in Cleveland, Ohio. Graduated from Geisel School of Medicine at Dartmouth in 2020, 6 years ago. Practices with Mayo Clinic, a 4,796-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
6
Trained at
Geisel School of Medicine at Dartmouth
Licensed in
OH
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9500 Euclid Ave
Cleveland, OH 44195-0001
Phone: (216) 444-2200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 20 York Street, New Haven, CT 06510-3220 — (203) 688-9503
  • 200 1st St Sw, Rochester, MN 55905-0001 — (507) 284-2511

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 35.156116 (OH)

Record details

NPI number1265061444
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2020
Last updated in NPPESJuly 14, 2026
Certification dateJuly 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolGEISEL SCHOOL OF MEDICINE AT DARTMOUTH
Graduated 2020 (6 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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