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

William C Dan, DO

Individual provider Anesthesiology Physician · NPI 1407684657

William C Dan, DO is an Anesthesiology Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2024.

Licensed in
IL
In the registry since
2024
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

5841 S Maryland Ave # MC4028
Chicago, IL 60637-1443
Phone: (773) 702-6700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 125085462 (IL)

Record details

NPI number1407684657
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 22, 2024
Last updated in NPPESMay 10, 2025
Certification dateMay 10, 2025

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