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Gastroenterology

Walter J. Bristow Iii, MD

Works at hospitals in Columbia, SC · South Carolina

Summary

Dr. Walter J. Bristow Iii, MD is a gastroenterologist at 2739 Laurel St, Suite 1a, Columbia, SC 29204. Phone: (803) 799-4800. Accepts Medicare assignment. In 2024, Walter J. Bristow Iii had 688 Original Medicare patients and 2,072 services. NPI 1407847023. 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 Walter J. Bristow Iii, 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 Walter J. Bristow Iii accept Medicare assignment?
Yes. Medicare's clinician data says Walter J. Bristow Iii 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 Walter J. Bristow Iii see?
In 2024, CMS data shows 688 Original Medicare patients and 2,072 services for Walter J. Bristow Iii. This counts Original Medicare only and measures volume, not quality.
What is Walter J. Bristow Iii's NPI number?
1407847023. 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 Walter J. Bristow Iii, 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 patients688
Services billed to Medicare2,072
Different services or procedures24
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)620 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)252 services
  3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)172 services
  4. Special stained specimen slides to examine tissue including interpretation and report (88313)161 services
  5. Biopsy of large bowel using a flexible endoscope (45380)151 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%
  • Arthritis49%
  • Ischemic heart disease31%
  • Diabetes26%
  • Anxiety23%

Hospitals where Walter J. Bristow Iii works

Medicare's Facility Affiliation Data lists Walter J. Bristow Iii 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 Walter J. Bristow Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Walter J. Bristow Iii as a member of this group (CMS data updated October 2, 2026).

  • Columbia Gastroenterology Associates PA10 clinicians in the group

Specialties

Find other Gastroenterology doctors in South Carolina →

Other gastroenterologists in Columbia

Clinicians with the same Medicare primary specialty in Columbia, SC — not a recommendation.

All gastroenterologists in Columbia →

Other clinicians in Columbia Gastroenterology Associates PA

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

Clinician information

CredentialMD
Medical schoolRush Medical College Of Rush University
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1407847023
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