What is Kathleen O'brien's specialty?

Kathleen O'brien (NPI 1942597661) is a Medicare-billing provider whose primary specialty is Physician Assistant in Topsham, ME.

Where does Kathleen O'brien practice?

Kathleen O'brien practices in Topsham, ME, based on the location reported in the CMS Medicare provider datasets for NPI 1942597661.

How much does Medicare pay Kathleen O'brien?

Kathleen O'brien (NPI 1942597661) received approximately $5K in total Medicare Part B payments, serving 86 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1942597661

Kathleen O'brienP.A.-C

Physician AssistantTopsham, MEI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

103

Distinct HCPCS

Medicare payment

$4K

Peer benchmark

Total Medicare services vs. 825 Physician Assistant providers in ME — below median (cohort median 154).

PRESCRIBING · PART D · 2024

Total Rx claims

571

Beneficiaries

—

Total drug cost

$44K

Distinct drugs

Brand share

12.8%

Top prescribed drugs

Atorvastatin Calcium57 claims

Lisinopril53 claims

Hydrochlorothiazide40 claims

Amlodipine Besylate39 claims

Levothyroxine Sodium35 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$32

Payment records

By payment type

Food and Beverage$32

Top paying entities

Food and Beverage$32

REFERRAL NETWORK

Where Kathleen O'brien'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
David Inger Family Practice · Topsham, ME	52	130
Sarah Davis Family Practice · Brunswick, ME	20	43
Keith Fleming Diagnostic Radiology · Brunswick, ME	11	17

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