Internal Medicine - Gastroenterology Specialists in Richland, WA
Browse 6 Internal Medicine - Gastroenterology providers listed in NPPES with a practice address in Richland, Washington.
How Richland compares with the U.S.
6 active clinicians in Internal Medicine - Gastroenterology list a practice address in Richland, WA in the NPI registry.
With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.
Too few clinicians in Internal Medicine - Gastroenterology in Richland are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@t-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of November 2026.
Dr. Janak T. Bahirwani , MD
Internal Medicine - Gastroenterology
Dr. Randy Jay Geldmacher , MD
Internal Medicine - Gastroenterology
Dr. Nazar Hafiz , MD
Internal Medicine - Gastroenterology
Dr. Peter Donald Maher , MD
Internal Medicine - Gastroenterology
Dr. Hoyeol Yang , MD
Internal Medicine - Gastroenterology
Dr. Ziga Tretjak , MD
Internal Medicine - Gastroenterology
Frequently Asked Questions about Internal Medicine - Gastroenterology in Richland
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Washington licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Other Specialties in Richland
- Nurse Practitioner - Family 90
- Physician Assistant 82
- Pharmacist 77
- Physical Therapist 65
- Student in an Organized Health Care Education/Training Program 53
- Nurse Practitioner 34
- Chiropractor 29
- Dentist - General Practice 24
- Occupational Therapist 23
- Dentist 19
- Physician Assistant - Medical 18
- Nurse Practitioner - Psychiatric/Mental Health 16
Internal Medicine - Gastroenterology Specialists in Other Washington Cities
Cities with the most listed practitioners first.