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

Dr. William Patrick Zeller, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1699738922

Dr. William Patrick Zeller, MD is an Endocrinology, Diabetes & Metabolism Physician in Wheaton, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2001 N Gary Ave Ste 240
Wheaton, IL 60187-3055
Phone: (630) 416-4501
Fax: (630) 416-4504
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Endocrinology Physician (primary) Taxonomy 2080P0205X · Licence 036-057718 (IL)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 036-057718 (IL)

Record details

NPI number1699738922
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 8, 2006
Last updated in NPPESJune 21, 2022
Certification dateJune 21, 2022

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