Peter Maher, M.D.
NPI 1689857310 · Gastroenterology Physician · Richland, WA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Maher, M.D. is a Gastroenterology Physician provider in Richland, WA (NPI 1689857310).
Provider details
- NPI number
- 1689857310
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00035465 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
622 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 139 | $80 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 135 | $244 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 72 | $176 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 68 | $127 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 57 | $147 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 97 | 39 |
| Pantoprazole Sodium | 34 | 15 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 28 | 27 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 18 | 18 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 15 | 15 |
| Adalimumabbrand: Humira Pen | 14 | — |
Practice location
Mailing address
Additional practice locations (1)
- 602 N Colorado StSuite DKennewick, WA 99336-7825Phone: (509) 735-8600Fax: (509) 783-7354
Registry dates
- Enumerated
- 2007-12-17
- Last updated
- 2023-06-15
- Certified
- 2023-06-15
Frequently asked questions
- What is Peter Maher's NPI number?
- Peter Maher's National Provider Identifier (NPI) is 1689857310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Maher's specialty?
- Peter Maher is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Maher located?
- Peter Maher's practice location on file with NPPES is 1270 Lee Blvd, Richland, WA 99352-4231.
- What is Peter Maher's phone number?
- The practice phone number listed in the NPPES registry for Peter Maher is (509) 942-3180.
- Does Peter Maher accept Medicare?
- Peter Maher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Maher's NPI active?
- Yes — Peter Maher's NPI (1689857310) is active in the NPPES registry as of the last update on 2023-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.