What is Erin O'fallon's specialty?

Erin O'fallon (NPI 1801853205) is a Medicare-billing provider whose primary specialty is Internal Medicine in Boston, MA.

Where does Erin O'fallon practice?

Erin O'fallon practices in Boston, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1801853205.

How much does Medicare pay Erin O'fallon?

Erin O'fallon (NPI 1801853205) received approximately $35K in total Medicare Part B payments, serving 160 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1801853205

Erin O'fallonM.D. M.P.H.

Internal MedicineBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

271

Unique beneficiaries

—

Total services

398

Distinct HCPCS

Medicare payment

$33K

Peer benchmark

Total Medicare services vs. 3,978 Internal Medicine providers in MA — below median (cohort median 564).

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 Erin O'fallon'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). 27 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Boston Public Health Commission Ambulance Service Provider · Boston, MA	62	218
Jeffrey Cohen Cardiology · Jamaica Plain, MA	54	239
Malavalli Gopal Cardiology · Boston, MA	46	171
Mary Thorndike Internal Medicine · Boston, MA	40	149
Praveen Meka Internal Medicine · Boston, MA	39	120
Joseph Fonte Diagnostic Radiology · Brighton, MA	36	124
Daniel Souza Diagnostic Radiology · Boston, MA	35	105
Amin Chaoui Diagnostic Radiology · Brighton, MA	34	112
FALLON SERVICE, INC.	32	81
Daniel Lee Internal Medicine · Dedham, MA	30	130
Wendy Landman Internal Medicine · Boston, MA	25	72
Paul Chen Emergency Medicine · Cambridge, MA	24	69

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