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

Mr. Mark Douglas Duncan, MHA

Individual provider Day Training/Habilitation Specialist · NPI 1801809223

Mr. Mark Douglas Duncan, MHA is a Day Training/Habilitation Specialist in Fort Gratiot, Michigan. Practices as a sole proprietor. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
MHA — Master of Health Administration
A graduate degree in health management.

See every abbreviation used in this directory →

Practice location Address checks out

3847 Pine Grove Ave Ste A
Fort Gratiot, MI 48059-4265
Phone: (810) 966-3717
Show map & directions

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

Specialties & licences

Day Training/Habilitation Specialist (primary) Taxonomy 373H00000X

Record details

NPI number1801809223
Entity typeIndividual (Type 1)
GenderMale
Credentials MHA
Sole proprietorYes
NPI enumeratedAugust 15, 2006
Last updated in NPPESJuly 8, 2007