Dr Joon S Ahn, MD - Medicare Hand Surgery in Mount Vernon, IL

Dr Joon S Ahn, MD is a medicare enrolled "Orthopaedic Surgery - Hand Surgery" physician in Mount Vernon, Illinois. He went to Temple University School Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Hand Surgery. He is a member of the group practice Orthopaedic Center Of Southern Illinois, Ltd, Select Physical Therapy Holdings Inc and his current practice location is 4121 Veterans Memorial Dr, Mount Vernon, Illinois. You can reach out to his office (for appointments etc.) via phone at (618) 242-3778.

Dr Joon S Ahn is licensed to practice in Illinois (license number 036104840) 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 1083681027.

Contact Information

Dr Joon S Ahn, MD
4121 Veterans Memorial Dr,
Mount Vernon, IL 62864-6262
(618) 242-3778
(618) 242-2551

Map and Direction




Physician's Profile

Full NameDr Joon S Ahn
GenderMale
SpecialityHand Surgery
Experience29 Years
Location4121 Veterans Memorial Dr, Mount Vernon, 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 Joon S Ahn attended and graduated from Temple University School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1083681027
  • Provider Enumeration Date: 03/08/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8426188277
  • Enrollment ID: I20100604001096

Medical Identifiers

Medical identifiers for Dr Joon S Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083681027NPI-NPPES
036104840MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XS0106XOrthopaedic Surgery - Hand Surgery 036104840 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm Health - Good Samaritan HospitalMount vernon, ILHospital
Crossroads Community HospitalMount vernon, ILHospital
Washington County HospitalNashville, ILHospital
Marshall Browning HospitalDu quoin, ILHospital
Ssm Health St Mary's Hospital -centraliaCentralia, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orthopaedic Center Of Southern Illinois, Ltd690170544121
Select Physical Therapy Holdings Inc95370764011557

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Joon S Ahn allows following entities to bill medicare on his behalf.
Entity NameOrthopaedic Center Of Southern Illinois, Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134171226
PECOS PAC ID: 6901705441
Enrollment ID: O20040105000416

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 Joon S Ahn 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 Joon S Ahn, MD
4121 Veterans Memorial Dr,
Mount Vernon, IL 62864-6262

Ph: (618) 242-3778
Dr Joon S Ahn, MD
4121 Veterans Memorial Dr,
Mount Vernon, IL 62864-6262

Ph: (618) 242-3778

Reviews and Comments


Orthopaedic Surgery Doctors in Mount Vernon, IL

Dr. Juan Alfredo Carrillo, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 302 Broadway St, Mount Vernon, IL 62864
Phone: 618-242-4750    Fax: 618-242-7674
Dr. James C Chow, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 4121 Veterans Memorial Dr, Mount Vernon, IL 62864
Phone: 618-242-3778    Fax: 618-242-2551
Mr. Alan L Froehling, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 302 Broadway St, Mount Vernon, IL 62864
Phone: 618-242-4750    Fax: 618-242-7674
Dr. Jean Benoit Houle, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 4121 Veterans Memorial Dr, Mount Vernon, IL 62864
Phone: 618-242-3778    Fax: 618-242-2551
Dr. John Gordon Rowe, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 302 Broadway St, Mount Vernon, IL 62864
Phone: 618-242-4750    Fax: 618-242-7674
Robert Dow, MD
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 4121 Veterans Memorial Dr, Mount Vernon, IL 62864
Phone: 618-242-3778    

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.

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