Dr Chad R Johnston, MD - Medicare Internal Medicine in Du Quoin, IL

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Dr Chad R Johnston, MD is a medicare enrolled "Internal Medicine" physician in Du Quoin, Illinois. He went to Southern Illinois University School Of Medicine and graduated in 2003 and has 23 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Marshall Browning Hospital Association and his current practice location is 916 N Washington St, Du Quoin, Illinois. You can reach out to his office (for appointments etc.) via phone at (618) 542-2146.

Dr Chad R Johnston is licensed to practice in Illinois (license number 036119004) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1538239520.

Contact Information

Dr Chad R Johnston, MD
916 N Washington St,
Du Quoin, IL 62832-1200
(618) 542-2146
Not Available

Map and Direction




Physician's Profile

Full NameDr Chad R Johnston
GenderMale
SpecialityInternal Medicine
Experience23 Years
Location916 N Washington St, Du Quoin, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Chad R Johnston attended and graduated from Southern Illinois University School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1538239520
  • Provider Enumeration Date: 11/08/2006
  • Last Update Date: 12/02/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7810086964
  • Enrollment ID: I20071128000069

Medical Identifiers

Medical identifiers for Dr Chad R Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538239520NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RA0401XInternal Medicine - Addiction Medicine 0058849 (Colorado)Secondary
207R00000XInternal Medicine 036119004 (Illinois)Primary
207R00000XInternal Medicine A95435 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lhc-illinois Home Health CareMarion, ILHome health agency
Lbn Residential Home Health Of Southern IllinoisMarion, ILHome health agency
Hospice Of Southern Ill, IncBelleville, ILHospice
Marshall Browning HospitalDu quoin, ILHospital
Memorial Hospital Of CarbondaleCarbondale, ILHospital
Pinckneyville Community HospitalPinckneyville, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Marshall Browning Hospital Association933504998030

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Chad R Johnston is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Chad R Johnston, MD
900 N Washington St,
Du Quoin, IL 62832-1233

Ph: (618) 542-2146		Dr Chad R Johnston, MD
916 N Washington St,
Du Quoin, IL 62832-1200

Ph: (618) 542-2146

Reviews and Comments


Internal Medicine Doctors in Du Quoin, IL

Dr. Saeed Zamir, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 N Washington St, Du Quoin, IL 62832
Phone: 618-542-2146    Fax: 618-542-4756
Anothai Tavee, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 317 S Washington St, Du Quoin, IL 62832
Phone: 618-542-8712    Fax: 618-542-8762

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.