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

Dr. Sean David McWilliams, MD

Individual provider Family Medicine Physician · NPI 1356323398

Dr. Sean David McWilliams, MD is a General Practice in Wheaton, Illinois. Qualified in 1995, 31 years ago. Accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
31
Licensed in
IL, IN
In the registry since
2005
Specialties on file
4
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

180 Danada Sq W
Wheaton, IL 60189-2041
Phone: (630) 474-2600
Fax: (630) 474-2601
Show map & directions

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

Specialties & licences

Phlebology Physician (primary) Taxonomy 202K00000X · Licence 036096961 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036096961 (IL)
Vascular Surgery Physician Taxonomy 2086S0129X · Licence 036096961 (IL)
Vascular Surgery Physician Taxonomy 2086S0129X · Licence 01062181A (IN)

Record details

NPI number1356323398
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 16, 2005
Last updated in NPPESApril 25, 2024
Certification dateApril 25, 2024
Mailing address180 Danada Sq W, Wheaton, IL 60189-2041

Medicare enrollment

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

Medicare specialtyGENERAL PRACTICE
Also practisesPERIPHERAL VASCULAR DISEASE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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