Mark A Oyer, MD - Medicare Orthopedic Surgery in Rockford, IL

Mark A Oyer, MD is a medicare enrolled "Orthopaedic Surgery" physician in Rockford, Illinois. He graduated from medical school in 2015 and has 9 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Orthomidwest Pllc and his current practice location is 5875 E Riverside Blvd, Rockford, Illinois. You can reach out to his office (for appointments etc.) via phone at (815) 398-9491.

Mark A Oyer is licensed to practice in Illinois (license number 036-154989) 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 1679968812.

Contact Information

Mark A Oyer, MD
5875 E Riverside Blvd,
Rockford, IL 61114-4937
(815) 398-9491
(815) 381-7498

Map and Direction




Physician's Profile

Full NameMark A Oyer
GenderMale
SpecialityOrthopedic Surgery
Experience9 Years
Location5875 E Riverside Blvd, Rockford, 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:
  • Mark A Oyer graduated from medical school in 2015
  NPI Data:
  • NPI Number: 1679968812
  • Provider Enumeration Date: 04/04/2015
  • Last Update Date: 08/03/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7416252267
  • Enrollment ID: I20210628002113

Medical Identifiers

Medical identifiers for Mark A Oyer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679968812NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 73696 (Wisconsin)Secondary
207X00000XOrthopaedic Surgery 036-154989 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Anthony Medical Center For Home CareRockford, ILHome health agency
Osf Saint Anthony Medical CenterRockford, ILHospital
Swedish American HospitalRockford, ILHospital
Cgh Medical CenterSterling, ILHospital
Katherine Shaw Bethea HospitalDixon, ILHospital
Fhn Memorial HospitalFreeport, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orthomidwest Pllc0749183713386

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. Mark A Oyer allows following entities to bill medicare on his behalf.
Entity NameOrthomidwest Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730136474
PECOS PAC ID: 0749183713
Enrollment ID: O20040128000533
Entity NameMidwest Orthopaedics At Rush Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811942451
PECOS PAC ID: 0244143196
Enrollment ID: O20040706000709
Entity NameOtn Care Of Tn Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629531389
PECOS PAC ID: 6901232602
Enrollment ID: O20210514002181

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. Mark A Oyer 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
Mark A Oyer, MD
Po Box 735263,
Chicago, IL 60673-5263

Ph: () -
Mark A Oyer, MD
5875 E Riverside Blvd,
Rockford, IL 61114-4937

Ph: (815) 398-9491

Reviews and Comments


Orthopaedic Surgery Doctors in Rockford, IL

Donald H Holder, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1235 N Mulford Rd, Rockford, IL 61107
Phone: 815-637-8637    
Dr. Steven Milos, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1340 Charles St, Suite 100, Rockford, IL 61104
Phone: 779-696-1900    
Thomas J Danaher, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1340 Charles St, Ste 100, Rockford, IL 61104
Phone: 779-696-1900    
Jeffrey S. Earhart, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 324 Roxbury Rd, Rockford, IL 61107
Phone: 815-398-9491    Fax: 815-381-7498
Jeremiah Albert Pflederer, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114
Phone: 801-587-5448    
Edric G Schwartz, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 324 Roxbury Rd, Rockford, IL 61107
Phone: 815-398-9491    Fax: 815-381-7498
Brian J Bear, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 324 Roxbury Rd, Rockford, IL 61107
Phone: 815-398-9491    Fax: 815-381-7498

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.