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

Dr. Johnson Mao, MD

Individual provider Specialist · NPI 1538107321

Dr. Johnson Mao, MD is a Specialist in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
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

2506 N Clark St #282
Chicago, IL 60614-1848
Phone: (312) 842-8210
Fax: (312) 842-8281
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Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 36050106 (IL)

Record details

NPI number1538107321
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 3, 2006
Last updated in NPPESJuly 13, 2026
Mailing address2600 S Michigan Ave, 403, Chicago, IL 60616-2857

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