DR. PETER DONALD IV MAHER (M.D.) – Gastroenterology Physician, NPI 1689857310
Gastroenterology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
474 GASTROENTEROLOGY in WA
Provider Addresses for DR. PETER DONALD IV MAHER (M.D.)
Stevens Drive, Richland, Benton County, Washington, United States
RICHLAND, WA 993523536
Phone: (509) 942-3180
Fax: (509) 943-9722
Type: Mailing
1270 LEE BLVD
RICHLAND, WA 993524231
Phone: (509) 942-3180
Fax: (509) 943-9722
Type: Location
602 N Colorado St
Suite D
Kennewick, WA 993367825
Phone: (509) 735-8600
Fax: (509) 783-7354
Type: Location
602, North Colorado Street, Tri-Cities, Benton County, Washington, 99336, United States
SUITE D
KENNEWICK, WA 993367825
Phone: (509) 735-8600
Fax: (509) 783-7354
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $22.
Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.
Last reported payment date: 2023-10-18 • Largest payer in this snapshot: Exact Sciences Corporation ($22).
Total Amount
$22
General + Research + Ownership
Payments
1
Total payment records
General Amount
$22
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Exact Sciences Corporation | $22 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-10-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20051012000514 | I | Gastroenterology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 107 | 105 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 84 | 84 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 50 | 36 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 41 | 41 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 35 | 35 | $0 |
Insurance plans in this area (ZIP 99352)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Medical Oncology, Hematology, Hematology/Oncology, Internal Medicine | WA | |
| - | MO | |
| Hospitalist, Internal Medicine | WA | |
| - | WA | |
| P O D I A T R Y | WA | |
| Hematology/Oncology, Internal Medicine | WA | |
| Nurse Practitioner | KS | |
| Nurse Practitioner | NC | |
| Physician Assistant | WA | |
| Internal Medicine | WA |
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