Are you Dr. Grayhack? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 225 E Chicago Ave # 69, Lurie Children's Hospital of Chicago, Chicago, IL 60611
About Dr. Grayhack
Based in Chicago, IL, John Grayhack, MD is listed in the NPI registry under orthopaedic surgery. NPI 1043205966 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (312) 227-6190
- Email not available
Practice Locations
225 E CHICAGO AVE # 69 LURIE CHILDREN'S HOSPITAL OF CHICAGO
Chicago, IL 60611
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Dr. Grayhack's specialty?
Dr. Grayhack is an orthopaedic surgeon in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where can I find Dr. Grayhack?
Dr. Grayhack is listed at 225 E Chicago Ave # 69 Lurie Children's Hospital of Chicago, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Grayhack?
The number on file is (312) 227-6190. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Grayhack's NPI number?
Dr. Grayhack's National Provider Identifier is 1043205966. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Grayhack been practicing?
Dr. Grayhack has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Grayhack confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grayhack. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.