Physician Profile
Unclaimed ProfileAbout MAHER
Based in Richland, WA, Peter Donald Maher, M.D. is listed in the NPI registry under gastroenterology. Peter graduated from George Washington University School of Medicine in 1986. Peter is also listed as specializing in internal medicine. According to Medicare claims data, Peter cared for 610 Medicare patients across 622 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (509) 942-3180
- Email not available
Practice Locations
1270 LEE BLVD
Richland, WA 99352
Procedures Most Often Billed to Medicare
622 services · 610 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
139 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
135 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
57 |
| Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | Procedure | 43249 |
30 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
28 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
14 |
| Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | Procedure | 43251 |
12 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
72 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
68 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
22 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 26 related providers in 4 groups
Other gastroenterology specialists in Richland 2
Same specialty, same city.
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in WA who bill this service to Medicare most often.
Common questions
What is Dr. Maher's specialty?
Dr. Maher is a gastroenterology in Richland, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Maher?
Dr. Maher is listed at 1270 LEE BLVD, Richland, WA 99352. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Maher?
The number on file is (509) 942-3180. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Maher's NPI number?
Dr. Maher's National Provider Identifier is 1689857310. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Maher's medical education?
Dr. Maher attended George Washington University School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Maher been practicing?
Dr. Maher has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Maher known for?
According to Medicare billing data, Dr. Maher performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Maher confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maher. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.