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Internal Medicine

Adam D. Isbell, MD

Works at hospitals in Sheffield, AL · Florence, AL · Muscle Shoals, AL · Alabama

Summary

Dr. Adam D. Isbell, MD is an internal medicine doctor at 2410 Avalon Ave, Muscle Shoals, AL 35661. Phone: (256) 386-0808. Accepts Medicare assignment. In 2024, Adam D. Isbell had 350 Original Medicare patients and 6,898 services. NPI 1518196070. 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 Adam D. Isbell, 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 Adam D. Isbell accept Medicare assignment?
Yes. Medicare's clinician data says Adam D. Isbell 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 Adam D. Isbell see?
In 2024, CMS data shows 350 Original Medicare patients and 6,898 services for Adam D. Isbell. This counts Original Medicare only and measures volume, not quality.
What is Adam D. Isbell's NPI number?
1518196070. 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 Adam D. Isbell, 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 patients350
Services billed to Medicare6,898
Different services or procedures117
Participating Medicare providerYes
Average age of these patients75

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)986 services
  2. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)759 services
  3. Blood test, comprehensive group of blood chemicals (80053)681 services
  4. Blood test, lipids (cholesterol and triglycerides) (80061)397 services
  5. Hemoglobin a1c level (83036)352 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%
  • Arthritis45%
  • Diabetes37%
  • Ischemic heart disease24%
  • Anxiety23%

Hospitals where Adam D. Isbell works

Medicare's Facility Affiliation Data lists Adam D. Isbell 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.

  • Helen Keller HospitalSheffield, AL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 010019
  • North Alabama Medical CenterFlorence, AL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 010006
  • North Alabama Shoals HospitalMuscle Shoals, AL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 010157

Practice locations

Addresses where Adam D. Isbell is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Adam D. Isbell as a member of this group (CMS data updated October 2, 2026).

  • Avalon Medical Group21 clinicians in the group

Specialties

Find other Internal Medicine doctors in Alabama →

Other internal medicine doctors in Muscle Shoals

Clinicians with the same Medicare primary specialty in Muscle Shoals, AL — not a recommendation.

All internal medicine doctors in Muscle Shoals →

Other clinicians in Avalon Medical Group

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518196070
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