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

Individual provider Orthopaedic Surgery Physician · NPI 1629064449

Steven J. Mash, MD is an Orthopaedic Surgery Physician in Downers Grove, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
Specialties on file
3
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

4115 Fairview Ave
Downers Grove, IL 60515-2268
Phone: (630) 968-1881
Fax: (630) 968-3762
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Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X (IL)
Adult Reconstructive Orthopaedic Surgery Physician Taxonomy 207XS0114X (IL)
Sports Medicine (Orthopaedic Surgery) Physician Taxonomy 207XX0005X (IL)

Record details

NPI number1629064449
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 27, 2005
Last updated in NPPESMarch 4, 2008
Mailing address4300 Commerce Ct, Suite 230, Lisle, IL 60532-3698

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