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Internal Medicine

John Demorlis, MD

Works at hospitals in Rolla, MO · Salem, MO · Missouri

Summary

John Demorlis, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Rolla, MO and Salem, MO. NPI 1659442028. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John Demorlis, 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
May acceptAccepts Medicare assignment
47Years since medical school (graduated 1979)
MaleGender (as listed)
Salem Memorial HospitalGroup practice

Quick answers

Which hospitals does John Demorlis work at?
Medicare's official clinician data lists John Demorlis at 2 hospitals: Phelps County Regional Medical Center and Salem Memorial District Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Demorlis see patients?
Medicare's clinician data lists 4 practice locations, including Salem, MO. Call before your visit to confirm the address.
What is John Demorlis's specialty?
Medicare lists Internal Medicine as the primary specialty, and also General Practice.
Does John Demorlis accept Medicare assignment?
Medicare's clinician data says John Demorlis may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for John Demorlis?
(573) 729-3410, as listed in official Medicare / NPI Registry data.
What is John Demorlis's NPI number?
1659442028. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Demorlis works

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

Group practices

Medicare enrollment lists John Demorlis as a member of this group (CMS data updated 2026-10-02).

  • Salem Memorial Hospital15 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Missouri

Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.

All internal medicine doctors in Missouri →

Clinician information

CredentialMD
Graduation year1979
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1659442028
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