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

William J Lopez, MD

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1811014228

William J Lopez, MD is a Preventive Medicine/Occupational Environmental Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
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

900 E 103rd St
Chicago, IL 60628-3033
Phone: (615) 778-4066
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence 036085602 (IL)

Record details

NPI number1811014228
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2007
Last updated in NPPESMay 8, 2009
Mailing address5080 Spectrum Dr, Suite 120 West, Addison, TX 75001-4648

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