Quick answers
- Which hospitals does Peter D. Maher Iv work at?
- Medicare's official clinician data lists Peter D. Maher Iv at 1 hospital: Kadlec Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter D. Maher Iv see patients?
- Medicare's clinician data lists 1 practice location in Richland, WA. Call before your visit to confirm the address.
- What is Peter D. Maher Iv's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Peter D. Maher Iv accept Medicare assignment?
- Yes. Medicare's clinician data says Peter D. Maher Iv accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Peter D. Maher Iv?
- (509) 942-3180, as listed in official Medicare / NPI Registry data.
- What is Peter D. Maher Iv's NPI number?
- 1689857310. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter D. Maher Iv works
Medicare's Facility Affiliation Data lists Peter D. Maher Iv at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kadlec Regional Medical CenterRichland, WA · Acute Care Hospital · CCN 500058
Practice locations
Addresses where Peter D. Maher Iv is enrolled with Medicare (CMS data updated 2026-10-02).
- 900 Stevens Dr, Suite 101Richland, WA 99352 (509) 942‑3180
Group practices
Medicare enrollment lists Peter D. Maher Iv as a member of this group (CMS data updated 2026-10-02).
- Kadlec Regional Medical Center414 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Richland
Clinicians with the same Medicare primary specialty in Richland, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689857310 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians