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Internal Medicine

Louis G. Gamble Iii, MD

Works at hospitals in Memphis, TN · Tennessee

Summary

Dr. Louis G. Gamble Iii, MD is an internal medicine doctor at 1265 Union Ave, Memphis, TN 38104. Phone: (901) 516-2362. Accepts Medicare assignment. In 2024, Louis G. Gamble Iii had 149 Original Medicare patients and 530 services. NPI 1821476334. 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: 1265 Union Ave, Memphis, TN 38104 · Directions
  • Phone: (901) 516‑2362
  • Medicare: Accepts Medicare assignment
  • Hospital: Methodist Hospitals of Memphis
  • Group practice: Methodist Inpatient Physicians LLC
  • Medical school: University Of Tennessee, Hsc, College Of Medicine · graduated 2015 (11 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Louis G. Gamble 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 Louis G. Gamble Iii accept Medicare assignment?
Yes. Medicare's clinician data says Louis G. Gamble 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 Louis G. Gamble Iii see?
In 2024, CMS data shows 149 Original Medicare patients and 530 services for Louis G. Gamble Iii. This counts Original Medicare only and measures volume, not quality.
What is Louis G. Gamble Iii's NPI number?
1821476334. 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 Louis G. Gamble 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 patients149
Services billed to Medicare530
Different services or procedures10
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)235 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)169 services
  3. Hospital discharge day management, more than 30 minutes (99239)67 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)40 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%
  • Diabetes68%
  • Chronic kidney disease56%
  • Arthritis50%
  • Heart failure50%

Hospitals where Louis G. Gamble Iii works

Medicare's Facility Affiliation Data lists Louis G. Gamble 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 Louis G. Gamble Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Louis G. Gamble Iii as a member of this group (CMS data updated October 2, 2026).

  • Methodist Inpatient Physicians LLC128 clinicians in the group

Specialties

Find other Internal Medicine doctors in Tennessee →

Other internal medicine doctors in Memphis

Clinicians with the same Medicare primary specialty in Memphis, TN — not a recommendation.

All internal medicine doctors in Memphis →

Other clinicians in Methodist Inpatient Physicians LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Tennessee, Hsc, College Of Medicine
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821476334
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