Karl C. Roberts, MD

What this record establishes

The authenticated AAHKS directory lists this surgeon as a member, and CMS published hip or knee replacement services under this surgeon's NPI.

What still needs verification: hip and knee replacement fellowship training, board certification and current all-payer annual volume. An unmet criterion is never a finding against a surgeon: CMS publishes only the Medicare half of a practice, and a credential nobody has documented is unknown, not absent.

How each fact was established

Fellowship verification pending

Fellowship training has not been resolved from a reviewed source.

An earlier automated pass recorded that a public biography documents residency training without mentioning a fellowship, but cited no page. Withdrawn because an absence nobody can check is not a documented absence. This is not a finding about the surgeon.

Years in practice

23 years since joining practice

Review the experience source ↗

Joint replacement volume

42 primary hip and knee replacements were published under this NPI in 2024 Original Medicare fee-for-service claims (11 hip, 31 knee). That is a lower bound: cash and commercially insured cases are published nowhere, for anyone. Below 100, the file proves nothing about total volume, because the rest of a practice is not in it.

Medicare participation: accepts Medicare assignment

The CMS Doctors & Clinicians file reports that this clinician accepts the Medicare-approved amount as payment in full.

CMS Medicare-listed practice: Western Michigan Bone And Joint Surgeons PC · Grand Rapids, MI 49546.

AAHKS membership

Listed in the authenticated AAHKS member directory as Fellow Member.

Board certification

American Board of Orthopaedic Surgery certification is not covered by the retained dataset and has not been checked.