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

Internal Medicine

Steve O. Egwuonwu, MD

Works at hospitals in Lawton, OK · Oklahoma

Summary

Dr. Steve O. Egwuonwu, MD is an internal medicine doctor at 1602 SW 82nd St, Lawton, OK 73505. Phone: (580) 510-2765. Accepts Medicare assignment. In 2024, Steve O. Egwuonwu had 180 Original Medicare patients and 1,259 services. NPI 1053519587. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1602 SW 82nd St, Lawton, OK 73505 · Directions (4 more locations)
  • Phone: (580) 510‑2765
  • Medicare: Accepts Medicare assignment
  • Hospitals: Memorial Health, Southwestern Medical Center
  • Group practice: Comanche County Healthcare Corporation (+2 more)
  • Medical school: graduated 2001 (25 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Steve O. Egwuonwu, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Steve O. Egwuonwu accept Medicare assignment?
Yes. Medicare's clinician data says Steve O. Egwuonwu accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Steve O. Egwuonwu see?
In 2024, CMS data shows 180 Original Medicare patients and 1,259 services for Steve O. Egwuonwu. This counts Original Medicare only and measures volume, not quality.
What is Steve O. Egwuonwu's NPI number?
1053519587. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Steve O. Egwuonwu, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients180
Services billed to Medicare1,259
Different services or procedures31
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)333 services
  2. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)216 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)154 services
  4. Hemoglobin a1c level (83036)114 services
  5. Injection, ceftriaxone sodium, per 250 mg (J0696)97 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis75%
  • Diabetes38%
  • Anxiety28%
  • Chronic kidney disease23%

Hospitals where Steve O. Egwuonwu works

Medicare's Facility Affiliation Data lists Steve O. Egwuonwu at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Memorial HealthLawton, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370056
  • Southwestern Medical CenterLawton, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370097

Practice locations

Addresses where Steve O. Egwuonwu is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Steve O. Egwuonwu as a member of these groups (CMS data updated October 2, 2026).

  • Comanche County Healthcare Corporation130 clinicians in the group
  • Comanche County Hospital Authority51 clinicians in the group
  • Southwestern Surgical Affiliates, LLC21 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oklahoma →

Other internal medicine doctors in Lawton

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

All internal medicine doctors in Lawton →

Other clinicians in Comanche County Healthcare Corporation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053519587
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians