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

Peter Donald Maher IV, MD, PLLC

Organization Gastroenterology Physician · NPI 1104910538

Peter Donald Maher IV, MD, PLLC is a Gastroenterology Physician in Kennewick, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

602 N Colorado St Ste D
Kennewick, WA 99336-7825
Phone: (509) 735-8600
Fax: (509) 783-7354
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD00035465 (WA)

Record details

NPI number1104910538
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Peter Maher — Owner · (509) 735-8600
Other names Columbia River Gastroenterology
NPI enumeratedOctober 2, 2006
Last updated in NPPESDecember 17, 2007
Mailing address602 N Colorado St, Suite D, Kennewick, WA 99336-7825

Other providers in Kennewick