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Internal Medicine

Charles H. Lo, MD

Sees patients in Chicago, IL · Illinois

Summary

Charles H. Lo, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Chicago, IL. NPI 1578635173. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Charles H. Lo, 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
49Years since medical school (graduated 1977)
Northwestern University Feinberg Medical SchoolMedical school
MaleGender (as listed)

Quick answers

Where does Charles H. Lo see patients?
Medicare's clinician data lists 1 practice location in Chicago, IL. Call before your visit to confirm the address.
What is Charles H. Lo's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Charles H. Lo accept Medicare assignment?
Medicare's clinician data says Charles H. Lo may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Charles H. Lo?
(312) 782-0487, as listed in official Medicare / NPI Registry data.
What is Charles H. Lo's NPI number?
1578635173. 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 Charles H. Lo is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All internal medicine doctors in Chicago →

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year1977
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1578635173
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