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Internal Medicine

Harrison Koss, MD

Sees patients in Brentwood, TN · Boca Raton, FL · Tennessee, Florida

Summary

Harrison Koss, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Brentwood, TN and Boca Raton, FL. NPI 1437851888. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Harrison Koss, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
3Years since medical school (graduated 2023)
MaleGender (as listed)

Quick answers

Where does Harrison Koss see patients?
Medicare's clinician data lists 2 practice locations, including Brentwood, TN and Boca Raton, FL. Call before your visit to confirm the address.
What is Harrison Koss's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Harrison Koss accept Medicare assignment?
Medicare's clinician data says Harrison Koss may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Harrison Koss's NPI number?
1437851888. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Harrison Koss is enrolled with Medicare (CMS data updated 2026-10-02).

  • 2000 Health Park DrBrentwood, TN 37027
  • 5661 Stradella DrBoca Raton, FL 33433

Specialties

Find other Internal Medicine doctors in Tennessee →

Other internal medicine doctors in Brentwood

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

All internal medicine doctors in Brentwood →

Clinician information

CredentialMD
Graduation year2023
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1437851888
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians