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

Dr. Donald Mark Mazanowski, MD

Individual provider Family Medicine Physician · NPI 1609961069

Dr. Donald Mark Mazanowski, MD is a Family Medicine Physician in Keene, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2006.

Licensed in
NH
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

590 Court St
Keene, NH 03431-1719
Phone: (603) 354-5400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 7917 (NH)

Record details

NPI number1609961069
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESApril 5, 2012
Mailing address590 Court St, Keene, NH 03431-1719

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