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

Individual provider Emergency Medicine Physician · NPI 1184203663

Zachary Philip Johannesson, MD is an Emergency Medicine in Potsdam, New York. Graduated from Ohio State University College of Medicine in 2024, 2 years ago. Practices with Canton-Potsdam Hospital, a 239-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
2
Trained at
Ohio State University College of Medicine
Licensed in
NY
In the registry since
2021
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

50 Leroy St
Potsdam, NY 13676-1786
Phone: (315) 265-3300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 77 W Barney St, Gouverneur, NY 13642-1040 — (315) 287-1000
  • 1 Hospital Dr, Massena, NY 13662-1056 — (315) 769-4200
  • 376 W 10th Ave, Columbus, OH 43210-1280 — (614) 293-3570

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 328336 (NY)

Record details

NPI number1184203663
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2021
Last updated in NPPESAugust 28, 2024
Certification dateAugust 28, 2024

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2024 (2 years in practice)
Group practice Canton-Potsdam Hospital — 239 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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