What is David Tierney's specialty?

David Tierney (NPI 1265597439) is a Medicare-billing provider whose primary specialty is Optometry in Somerville, MA.

Where does David Tierney practice?

David Tierney practices in Somerville, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1265597439.

How much does Medicare pay David Tierney?

David Tierney (NPI 1265597439) received approximately $8K in total Medicare Part B payments, serving 87 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1265597439

David TierneyOD

PRACTICEATRIUS HEALTH, INC.See all providers at this practice →

OptometrySomerville, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$6K

Peer benchmark

Total Medicare services vs. 880 Optometry providers in MA — below median (cohort median 270).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 David 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). 0 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

No inbound pairs above the suppression threshold.

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Susan Wong Ophthalmology · Somerville, MA	28	34
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	13	35

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