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

Dr. William Joseph Muller, MD, PHD

Individual provider Pediatric Infectious Diseases Physician · NPI 1790896041

Dr. William Joseph Muller, MD, PHD is an Infectious Disease in Chicago, Illinois. Qualified in 2001, 25 years ago. Practices with Lurie Children's Medical Group Inc, a 140-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
25
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

225 E Chicago Ave Box 20
Chicago, IL 60611-2991
Phone: (312) 227-4080
Fax: (312) 227-9709
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Infectious Diseases Physician (primary) Taxonomy 2080P0208X · Licence 036119141 (IL)

Record details

NPI number1790896041
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESNovember 7, 2022
Certification dateNovember 7, 2022
Mailing address225 E Chicago Ave, Box 20, Chicago, IL 60611-2991

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINFECTIOUS DISEASE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Lurie Children'S Medical Group Inc. — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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