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

Internal Medicine

William R. Alexander Iv, DO

Works at hospitals in Brunswick, GA · Saint Marys, GA · Georgia

Summary

Dr. William R. Alexander Iv, DO is an internal medicine doctor at 2415 Parkwood Dr, Brunswick, GA 31520. Phone: (912) 466-4079. Accepts Medicare assignment. In 2024, William R. Alexander Iv had 294 Original Medicare patients and 782 services. NPI 1639303589. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about William R. Alexander Iv, 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 William R. Alexander Iv accept Medicare assignment?
Yes. Medicare's clinician data says William R. Alexander Iv 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 William R. Alexander Iv see?
In 2024, CMS data shows 294 Original Medicare patients and 782 services for William R. Alexander Iv. This counts Original Medicare only and measures volume, not quality.
What is William R. Alexander Iv's NPI number?
1639303589. 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 William R. Alexander Iv, 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 patients294
Services billed to Medicare782
Different services or procedures6
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)301 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)250 services
  3. Hospital discharge day management, more than 30 minutes (99239)110 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)91 services
  5. Critical care, first 30-74 minutes (99291)29 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%
  • Arthritis53%
  • Chronic kidney disease47%
  • Diabetes46%
  • Depression45%

Hospitals where William R. Alexander Iv works

Medicare's Facility Affiliation Data lists William R. Alexander Iv 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.

Practice locations

Addresses where William R. Alexander Iv is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists William R. Alexander Iv as a member of this group (CMS data updated October 2, 2026).

  • Cooperative Healthcare Services Inc239 clinicians in the group

Specialties

Find other Internal Medicine doctors in Georgia →

Other internal medicine doctors in Brunswick

Clinicians with the same Medicare primary specialty in Brunswick, GA — not a recommendation.

All internal medicine doctors in Brunswick →

Other clinicians in Cooperative Healthcare Services Inc

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

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639303589
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