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Internal Medicine

David M. Rankin, MD

Works at hospitals in Maryville, TN · Knoxville, TN · Powell, TN · Tennessee

Summary

Dr. David M. Rankin, MD is an internal medicine doctor at 1934 Alcoa Hwy, Suite 472, Knoxville, TN 37920. Phone: (865) 305-6810. Accepts Medicare assignment. In 2024, David M. Rankin had 285 Original Medicare patients and 1,776 services. NPI 1225027865. 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 David M. Rankin, 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 David M. Rankin accept Medicare assignment?
Yes. Medicare's clinician data says David M. Rankin 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 David M. Rankin see?
In 2024, CMS data shows 285 Original Medicare patients and 1,776 services for David M. Rankin. This counts Original Medicare only and measures volume, not quality.
What is David M. Rankin's NPI number?
1225027865. 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 David M. Rankin, 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 patients285
Services billed to Medicare1,776
Different services or procedures35
Participating Medicare providerYes
Average age of these patients77

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)576 services
  2. Insertion of needle into vein for collection of blood sample (36415)343 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)207 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)154 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)89 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 cholesterol75%
  • High blood pressure70%
  • Arthritis59%
  • Ischemic heart disease37%
  • Diabetes27%
  • Atrial fibrillation24%

Hospitals where David M. Rankin works

Medicare's Facility Affiliation Data lists David M. Rankin 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 David M. Rankin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists David M. Rankin as a member of this group (CMS data updated October 2, 2026).

  • UHS Primary Care LLC93 clinicians in the group

Specialties

Find other Internal Medicine doctors in Tennessee →

Other internal medicine doctors in Knoxville

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

All internal medicine doctors in Knoxville →

Other clinicians in UHS Primary Care LLC

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

Clinician information

CredentialMD
Graduation year1978 (48 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225027865
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