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

Individual provider Internal Medicine Physician · NPI 1831105956

James A Guigelaar, MD is an Internal Medicine Physician in Bay City, Michigan. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2006
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

200 S Wenona St Ste 225
Bay City, MI 48706-8820
Phone: (989) 893-9705
Fax: (989) 893-8206
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence JG042006 (MI)

Record details

NPI number1831105956
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 31, 2006
Last updated in NPPESNovember 19, 2007

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