Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Johnson Wong, MD

Sees patients in Chesterfield, MO · Nashville, TN · Missouri, Tennessee

Summary

Johnson Wong, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Chesterfield, MO and Nashville, TN. NPI 1861846909. 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 Johnson Wong, 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
YesOffers telehealth
10Years since medical school (graduated 2016)
Meharry Medical College School Of MedicineMedical school
MaleGender (as listed)
Mercy Aco Clinical Services IncGroup practice

Quick answers

Where does Johnson Wong see patients?
Medicare's clinician data lists 2 practice locations, including Chesterfield, MO and Nashville, TN. Call before your visit to confirm the address.
What is Johnson Wong's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Johnson Wong accept Medicare assignment?
Yes. Medicare's clinician data says Johnson Wong 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.
Does Johnson Wong offer telehealth?
Medicare's clinician data says Johnson Wong offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Johnson Wong?
(636) 237-4200, as listed in official Medicare / NPI Registry data.
What is Johnson Wong's NPI number?
1861846909. 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 Johnson Wong is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Mercy Aco Clinical Services Inc170 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Chesterfield

Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.

All internal medicine doctors in Chesterfield →

Clinician information

CredentialMD
Medical schoolMeharry Medical College School Of Medicine
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861846909
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