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

Mark Isaacson, DO

Individual provider Family Medicine Physician · NPI 1376519306

Mark Isaacson, DO is a Family Medicine Physician in Middleton, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

6947 Harmony Way
Middleton, WI 53562-5119
Phone: (608) 831-0106
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 42213 (WI)

Record details

NPI number1376519306
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 28, 2006
Last updated in NPPESOctober 13, 2021
Certification dateOctober 13, 2021
Mailing address6947 Harmony Way, Middleton, WI 53562-5119

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