What is Gregory Tierney's specialty?

Gregory Tierney (NPI 1679519870) is a Medicare-billing provider whose primary specialty is Orthopedic Surgery in Great Falls, MT.

Where does Gregory Tierney practice?

Gregory Tierney practices in Great Falls, MT, based on the location reported in the CMS Medicare provider datasets for NPI 1679519870.

How much does Medicare pay Gregory Tierney?

Gregory Tierney (NPI 1679519870) received approximately $5K in total Medicare Part B payments, serving 20 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1679519870

Gregory TierneyM.D.

PRACTICEBENEFIS HOSPITALS INCSee all providers at this practice →

Orthopedic SurgeryGreat Falls, MTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$514

Peer benchmark

Total Medicare services vs. 92 Orthopedic Surgery providers in MT — bottom quintile (cohort median 1,179).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

83.0

Quality

62.6

Cost

80.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.34%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Gregory Tierney'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Christopher Merchant Physician Assistant · Great Falls, MT	25	177
Matthew Wetzel Diagnostic Radiology · Great Falls, MT	14	45

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