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

Peter Gallagher, MD

Individual provider Psychiatry Physician · NPI 1174517841

Peter Gallagher, MD is a Psychiatry Physician in Merrillville, Indiana. Licensed in Indiana. Registered with an NPI since 2005.

Licensed in
IN
In the registry since
2005
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

8555 Taft St
Merrillville, IN 46410-6123
Phone: (219) 769-4005
Fax: (219) 769-2508
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 01059467A (IN)

Record details

NPI number1174517841
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 8, 2005
Last updated in NPPESJuly 13, 2026
Mailing address8400 Louisiana St, Merrillville, IN 46410-6385

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