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

William G Sills MD PC

Organization Internal Medicine Physician · NPI 1437225158

William G Sills MD PC is an Internal Medicine Physician in Royal Oak, Michigan. Registered with an NPI since 2006.

In the registry since
2006
Specialties on file
2
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1223 S Washington
Royal Oak, MI 48067
Phone: (248) 399-9083
Fax: (248) 399-2417
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X
Cardiovascular Disease Physician Taxonomy 207RC0000X

Record details

NPI number1437225158
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Sills — Doctor · (248) 399-9083
NPI enumeratedNovember 27, 2006
Last updated in NPPESMarch 13, 2008
Mailing address1223 S Washington, Royal Oak, MI 48067

Other providers in Royal Oak