Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark A Oyer, MD

Individual provider Orthopaedic Surgery Physician · NPI 1679968812

Mark A Oyer, MD is an Orthopedic Surgery in Rockford, Illinois. Qualified in 2015, 11 years ago. Practices with Midwest Orthopaedics at Rush LLC, a 17-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Wisconsin.

Years since qualifying
11
Licensed in
IL, WI
In the registry since
2015
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5875 E Riverside Blvd
Rockford, IL 61114-4937
Phone: (815) 398-9491
Fax: (815) 381-7498
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 036-154989 (IL)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 73696 (WI)

Record details

NPI number1679968812
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2015
Last updated in NPPESAugust 3, 2023
Certification dateAugust 3, 2023
Mailing addressPo Box 735263, Chicago, IL 60673-5263

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Midwest Orthopaedics At Rush Llc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Rockford