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

John Grayhack, MD

Individual provider Orthopaedic Surgery Physician · NPI 1043205966

John Grayhack, MD is an Orthopaedic Surgery Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
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

225 E Chicago Ave # 69 Lurie Children's Hospital OF Chicago
Chicago, IL 60611-2991
Phone: (312) 227-6190
Fax: (312) 227-9404
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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 036072869 (IL)

Record details

NPI number1043205966
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 16, 2005
Last updated in NPPESFebruary 15, 2013

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