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Internal Medicine

Marlon R. Chagua, MD

Works at hospitals in New Albany, IN · La Grange, KY · Louisville, KY · Indiana, Kentucky

Summary

Dr. Marlon R. Chagua, MD is an internal medicine doctor at 104 Daventry Ln, Suite 2, Louisville, KY 40223. Phone: (502) 445-7957. May accept Medicare assignment. In 2024, Marlon R. Chagua had 415 Original Medicare patients and 3,789 services. NPI 1407811870. 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 Marlon R. Chagua, 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 Marlon R. Chagua accept Medicare assignment?
Medicare's clinician data says Marlon R. Chagua may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Marlon R. Chagua see?
In 2024, CMS data shows 415 Original Medicare patients and 3,789 services for Marlon R. Chagua. This counts Original Medicare only and measures volume, not quality.
What is Marlon R. Chagua's NPI number?
1407811870. 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 Marlon R. Chagua, 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 patients415
Services billed to Medicare3,789
Different services or procedures38
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)861 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)593 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)442 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)351 services
  5. Insertion of needle into vein for collection of blood sample (36415)152 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 cholesterol74%
  • Depression60%
  • Anxiety51%
  • Alzheimer's disease or dementia50%
  • Arthritis49%

Hospitals where Marlon R. Chagua works

Medicare's Facility Affiliation Data lists Marlon R. Chagua 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 Marlon R. Chagua is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marlon R. Chagua as a member of these groups (CMS data updated October 2, 2026).

  • Simplicity Health Nursing Home10 clinicians in the group
  • Kentucky Medical Specialists PSC2 clinicians in the group

Specialties

Find other Internal Medicine doctors in Kentucky →

Other internal medicine doctors in Louisville

Clinicians with the same Medicare primary specialty in Louisville, KY — not a recommendation.

All internal medicine doctors in Louisville →

Other clinicians in Simplicity Health Nursing Home

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

Clinician information

CredentialMD
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1407811870
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