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

Dr. Peter Donald Maher IV, MD

Individual provider Gastroenterology Physician · NPI 1689857310

Dr. Peter Donald Maher IV, MD is a Gastroenterology in Richland, Washington. Graduated from George Washington University School of Medicine in 1986, 40 years ago. Practices with Kadlec Regional Medical Center, a 396-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
40
Trained at
George Washington University School of Medicine
Licensed in
WA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1270 Lee Blvd
Richland, WA 99352-4231
Phone: (509) 942-3180
Fax: (509) 943-9722
Show map & directions

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

Additional practice locations (1)

  • 602 N Colorado St, Kennewick, WA 99336-7825 — (509) 735-8600

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD00035465 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD00035465 (WA)

Record details

NPI number1689857310
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 17, 2007
Last updated in NPPESJune 15, 2023
Certification dateJune 15, 2023
Mailing address900 Stevens Dr Ste 101, Richland, WA 99352-3536

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Kadlec Regional Medical Center — 396 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Richland