What is David Duffy's specialty?

David Duffy (NPI 1861414203) is a Medicare-billing provider whose primary specialty is Emergency Medicine in Greenbrae, CA.

Where does David Duffy practice?

David Duffy practices in Greenbrae, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1861414203.

How much does Medicare pay David Duffy?

David Duffy (NPI 1861414203) received approximately $68K in total Medicare Part B payments, serving 421 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861414203

David DuffyM.D.

PRACTICEDANA FORMAN, INC.See all providers at this practice →

Emergency MedicineGreenbrae, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

638

Unique beneficiaries

—

Total services

675

Distinct HCPCS

Medicare payment

$64K

Peer benchmark

Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$117

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Cephalexin18 claims

QUALITY · MIPS · 2024

Final MIPS score

96.7

Quality

90.0

Cost

78.4

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.91%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where David Duffy'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). 38 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARIN GENERAL HOSPITAL	494	1,216
Philip Kurzman Diagnostic Radiology · Greenbrae, CA	86	157
Brian Nagai Diagnostic Radiology · Fremont, CA	76	136
ORWIG, DENNIS	63	104
Robert Wirth Diagnostic Radiology · Novato, CA	59	145
Donna Hoghooghi Diagnostic Radiology · Greenbrae, CA	58	91
BAER, MARGARET	51	109
SUTTER BAY HOSPITALS	44	106
Southern Marin Emergency Medical Paramedic System Ambulance Service Provider · Tiburon, CA	44	66
Adam Baumgarten Cardiology · Larkspur, CA	41	71
North Star Emergency Services, Inc. Ambulance Service Provider · Livermore, CA	39	79
Natalya Lvoff Diagnostic Radiology · Greenbrae, CA	38	73

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