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

Mark J Grevlich, DDS

Individual provider Dentist · NPI 1245498641

Mark J Grevlich, DDS is a Dentist in Oconomowoc, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2008
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.

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Practice location Address checks out

N68W33420 Hwy K
Oconomowoc, WI 53066
Phone: (262) 966-9798
Fax: (262) 966-0443
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence WI3153 (WI)

Record details

NPI number1245498641
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJune 2, 2008
Last updated in NPPESJune 2, 2008

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