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

Dr. Michael George O'Callaghan, DDS

Individual provider Dentist · NPI 1386622017

Dr. Michael George O'Callaghan, DDS is a Dentist in Allegan, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

1630 Lincoln Rd
Allegan, MI 49010-9410
Phone: (269) 673-7274
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 013112 (MI)

Record details

NPI number1386622017
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJanuary 3, 2006
Last updated in NPPESJuly 8, 2007
Mailing address315 Old Pine Rd, Allegan, MI 49010-9159

Other providers in Allegan