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Gastroenterology

Won Seok Jo, MD

Works at hospitals in San Bernardino, CA · California

Summary

Won Seok Jo, MD (Gastroenterology) is listed by Medicare at 2 hospitals in San Bernardino, CA. NPI 1245215144. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Won Seok Jo, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
27Years since medical school (graduated 1999)
University Of California, San Diego School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Won Seok Jo work at?
Medicare's official clinician data lists Won Seok Jo at 2 hospitals: Community Hospital of San Bernardino and St Bernardine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Won Seok Jo see patients?
Medicare's clinician data lists 1 practice location in Redlands, CA. Call before your visit to confirm the address.
What is Won Seok Jo's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Won Seok Jo accept Medicare assignment?
Yes. Medicare's clinician data says Won Seok Jo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Won Seok Jo?
(909) 796-0363, as listed in official Medicare / NPI Registry data.
What is Won Seok Jo's NPI number?
1245215144. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Won Seok Jo works

Medicare's Facility Affiliation Data lists Won Seok Jo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Won Seok Jo is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in Redlands

Clinicians with the same Medicare primary specialty in Redlands, CA — not a recommendation.

All gastroenterologists in Redlands →

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Diego School Of Medicine
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245215144
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians