What is Peter Maher's specialty?

Peter Maher (NPI 1689857310) is a Medicare-billing provider whose primary specialty is Gastroenterology in Richland, WA.

Where does Peter Maher practice?

Peter Maher practices in Richland, WA, based on the location reported in the CMS Medicare provider datasets for NPI 1689857310.

How much does Medicare pay Peter Maher?

Peter Maher (NPI 1689857310) received approximately $81K in total Medicare Part B payments, serving 436 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1689857310

Peter MaherM.D.

GastroenterologyRichland, WAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

610

Unique beneficiaries

—

Total services

622

Distinct HCPCS

Medicare payment

$77K

Peer benchmark

Total Medicare services vs. 359 Gastroenterology providers in WA — above median (cohort median 511).

PRESCRIBING · PART D · 2024

Total Rx claims

217

Beneficiaries

—

Total drug cost

$99K

Distinct drugs

Brand share

39.6%

Top prescribed drugs

Omeprazole97 claims

Pantoprazole Sodium34 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl28 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl18 claims

Sodium, Potassium,mag Sulfates15 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Peter Maher's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 20 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Tri-City Regional Surgery Center Llc Ambulatory Surgical Center · Richland, WA	139	259
Tomas King Pathology · Spokane Valley, WA	49	95
KENNEWICK PUBLIC HOSPITAL DISTRICT	44	104
Shawn Jones Diagnostic Radiology · Richland, WA	37	137
Chet Hunter Diagnostic Radiology · Warren, MI	35	80
GORMLEY, TIMOTHY	29	86
BRITTAIN, DWANE	28	72
DESCHAMPS, STACEY	24	52
HAMMERSMITH, SCOTT	23	71
Isaac Reeve Diagnostic Radiology · Richland, WA	22	47
Edward Iuliano Diagnostic Radiology · Richland, WA	20	43
Praveen Korimerla Cardiology · Richland, WA	15	59

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events