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

Mark L. Mallek, MD PC

Organization Gastroenterology Physician · NPI 1649330226

Mark L. Mallek, MD PC is a Gastroenterology Physician in Nashua, 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?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

280 Main St Ste 340
Nashua, NH 03060-2919
Phone: (603) 881-8000
Fax: (603) 881-8001
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 6560 (NH)

Record details

NPI number1649330226
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Marie Ellis — Office Manager · (603) 881-8000
NPI enumeratedDecember 12, 2006
Last updated in NPPESAugust 22, 2020
Mailing address280 Main St, Suite 340, Nashua, NH 03060-2919

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