William Joseph Muller, MD, PHD
Pediatric Infectious Diseases Physician · Chicago, IL
William Joseph Muller, MD, PHD is a pediatric infectious diseases physician with a practice address in Chicago, Illinois, and NPI 1790896041, issued on Aug 31, 2006. Check the license (Illinois 036119141, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Joseph Muller
- Credential
- MD, PHD
- Primary taxonomy
- Pediatric Infectious Diseases Physician 2080P0208X
- License number
- 036119141 IL
Self-reported in NPPES; status is on the state search - Practice location
- 225 E Chicago Ave, Chicago, IL 60611
- Phone
- (312) 227-4080
- Enumerated
- Aug 31, 2006
- Record last updated
- Nov 7, 2022
- Fax
- (312) 227-9709
- Entity
- Type 1 · individual
8 nearest pediatric infectious diseases physician records → All 46 in Illinois → Look up another NPI →
Also registered at 225 E Chicago Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jasmene Abernathy, MDStudent in an Organized Health Care Education/Training Program1881454957
- Tamkeen Abreu, PHARMD, BCPSPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366888653
- Matthew Abts, MDPediatric Pulmonology Physician1588989750
- Samuel AccordinoStudent in an Organized Health Care Education/Training Program1194525204
- Carly Adajian, DDSDentist1184373029
- Julie Adams, RDRegistered Dietitian1417569153
Verify William Joseph Muller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036119141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $7,781.18
2 payments; by number, the most common kind was consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 294 providers of this specialty with any payment received $9,151.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Joseph Muller among 46 pediatric infectious diseases physician records in Illinois
William Joseph Muller, MD, PHD is one of 46 pediatric infectious diseases physician records with a practice address in Illinois. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 54% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 24% of these records are
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0208X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Infectious Diseases Physician providers in Illinois
There are 46 pediatric infectious diseases physician records in Illinois.
All 46 in Illinois → Every provider in Chicago → Pediatric Infectious Diseases Physician nationwide →
The 8 pediatric infectious diseases physician records with the nearest ZIP codes
- Lisa Akhtar, MD, PHDChicago, IL 606111285928416
- Mehreen Arshad, MBBSChicago, IL 606111245498344
- Ellen Chadwick, MDChicago, IL 606111669431078
- Jennifer Jao, MDChicago, IL 606111295779908
- Ravi Jhaveri, M.D.Chicago, IL 606111326197336
- Caitlin Li, MDChicago, IL 606111962858860
- Alexander Newman, MDChicago, IL 606111063823680
- Sameer Patel, M.D.Chicago, IL 606111750409710
Common questions
What is William Joseph Muller, MD, PHD's NPI number?
William Joseph Muller, MD, PHD's National Provider Identifier (NPI) is 1790896041, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Joseph Muller, MD, PHD located?
The NPPES record lists a practice address at 225 E Chicago Ave, Chicago, IL, 60611. Phone: (312) 227-4080. Providers update this record themselves, so call before visiting.
How can I verify William Joseph Muller, MD, PHD's license?
NPPES lists Illinois license number 036119141, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.