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Internal Medicine

Susan John, MD

Works at hospitals in Lima, OH · Ohio

Summary

Susan John, MD (Internal Medicine) is listed by Medicare at 1 hospital in Lima, OH. NPI 1740787571. 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 Susan John, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
Wayne State University School Of MedicineMedical school
MaleGender (as listed)
Mercy Health Physicians Lima Specialty Care LLCGroup practice (+1 more)

Quick answers

Which hospitals does Susan John work at?
Medicare's official clinician data lists Susan John at 1 hospital: Mercy Health St Ritas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Susan John see patients?
Medicare's clinician data lists 1 practice location in Lima, OH. Call before your visit to confirm the address.
What is Susan John's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Susan John accept Medicare assignment?
Yes. Medicare's clinician data says Susan John 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 Susan John?
(419) 224-1888, as listed in official Medicare / NPI Registry data.
What is Susan John's NPI number?
1740787571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Susan John works

Medicare's Facility Affiliation Data lists Susan John 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 Susan John is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Susan John as a member of these groups (CMS data updated 2026-10-02).

  • Mercy Health Physicians Lima Specialty Care LLC253 clinicians in the group
  • KND Development 59 LLC177 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Lima

Clinicians with the same Medicare primary specialty in Lima, OH — not a recommendation.

All internal medicine doctors in Lima →

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1740787571
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