What is Michael O'brien's specialty?

Michael O'brien (NPI 1700858438) is a Medicare-billing provider whose primary specialty is Pathology in Boston, MA.

Where does Michael O'brien practice?

Michael O'brien practices in Boston, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1700858438.

How much does Medicare pay Michael O'brien?

Michael O'brien (NPI 1700858438) received approximately $156K in total Medicare Part B payments, serving 974 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1700858438

Michael O'brienMD

PathologyBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,187

Unique beneficiaries

—

Total services

2,623

Distinct HCPCS

Medicare payment

$156K

Peer benchmark

Total Medicare services vs. 548 Pathology providers in MA — top quintile (cohort median 1,471).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

0.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Michael 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). 15 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Weymouth Endoscopy, Llc Ambulatory Surgical Center · South Weymouth, MA	534	567
VERMEULEN, JOHN	136	169
BOSTON MEDICAL CENTER CORPORATION	134	296
SMITH, BERNARD	85	92
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	77	119
SOUTH SHORE HOSPITAL INC.	59	76
Fernando Martinez Gastroenterology · South Weymouth, MA	50	77
Harbor Medical Associates, Inc. Clinical Laboratory · South Weymouth, MA	46	112
COX, CLAYLAND	41	62
NPI 1316907652	40	58
Christopher Kenney Gastroenterology · Norwell, MA	18	25
Thomas Moore Gastroenterology · Boston, MA	17	33

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