Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Ralph J. Nelson, DO

Sees patients in Oklahoma City, OK · Choctaw, OK · Norman, OK · Oklahoma

Summary

Ralph J. Nelson, DO (Emergency Medicine) is enrolled with Medicare at 5 practice locations in Oklahoma City, OK, Choctaw, OK and Norman, OK. NPI 1447258264. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ralph J. Nelson, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
MaleGender (as listed)
Immediate Care of Oklahoma LLCGroup practice

Quick answers

Where does Ralph J. Nelson see patients?
Medicare's clinician data lists 5 practice locations, including Oklahoma City, OK, Choctaw, OK and Norman, OK. Call before your visit to confirm the address.
What is Ralph J. Nelson's specialty?
Medicare lists Emergency Medicine as the primary specialty, and also Family Practice.
Does Ralph J. Nelson accept Medicare assignment?
Yes. Medicare's clinician data says Ralph J. Nelson 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 Ralph J. Nelson?
(405) 735-2370, as listed in official Medicare / NPI Registry data.
What is Ralph J. Nelson's NPI number?
1447258264. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ralph J. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ralph J. Nelson as a member of this group (CMS data updated 2026-10-02).

  • Immediate Care of Oklahoma LLC34 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Oklahoma →

Other emergency medicine doctors in Oklahoma City

Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.

All emergency medicine doctors in Oklahoma City →

Clinician information

CredentialDO
Graduation year2002
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447258264
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians