Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Saejin Oh, MD

Individual provider Emergency Medicine Physician · NPI 1841722360

John Saejin Oh, MD practises Emergency Medicine in Jacksonville, Florida. Graduated from University of Massachusetts Medical School in 2017, 9 years ago. Practices with University of Florida Jacksonville Physicians, Inc, a 903-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida and Massachusetts.

Years since qualifying
9
Trained at
University of Massachusetts Medical School
Licensed in
FL, MA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

655 W 8th St
Jacksonville, FL 32209-6511
Phone: (904) 244-0411
Fax: (904) 244-5666
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 100 South St, Southbridge, MA 01550-4051 — (508) 765-3195

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence ME161597 (FL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 285747 (MA)

Record details

NPI number1841722360
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2017
Last updated in NPPESApril 11, 2026
Certification dateApril 11, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2017 (9 years in practice)
Group practice University Of Florida Jacksonville Physicians, Inc. — 903 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients174
Services billed 198 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Shands Jacksonville Hospital · Jacksonville, FL

Colleagues at University of Florida Jacksonville Physicians, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 903 clinicians in the practice; 12 are shown here.

Other providers in Jacksonville