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Internal Medicine

Marques Johnson, MD

Sees patients in Southington, CT · Connecticut

Summary

Marques Johnson, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Southington, CT. NPI 1386339265. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Marques Johnson, 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
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
University Of Connecticut School Of MedicineMedical school
MaleGender (as listed)
University of Connecticut Health CenterGroup practice

Quick answers

Where does Marques Johnson see patients?
Medicare's clinician data lists 1 practice location in Southington, CT. Call before your visit to confirm the address.
What is Marques Johnson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Marques Johnson accept Medicare assignment?
Yes. Medicare's clinician data says Marques Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Marques Johnson?
(860) 276-6043, as listed in official Medicare / NPI Registry data.
What is Marques Johnson's NPI number?
1386339265. 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 Marques Johnson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Marques Johnson as a member of this group (CMS data updated 2026-10-02).

  • University of Connecticut Health Center639 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Southington

Clinicians with the same Medicare primary specialty in Southington, CT — not a recommendation.

All internal medicine doctors in Southington →

Clinician information

CredentialMD
Medical schoolUniversity Of Connecticut School Of Medicine
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1386339265
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