What is Joan Duggan's specialty?

Joan Duggan (NPI 1891780300) is a Medicare-billing provider whose primary specialty is Infectious Disease in Toledo, OH.

Where does Joan Duggan practice?

Joan Duggan practices in Toledo, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1891780300.

How much does Medicare pay Joan Duggan?

Joan Duggan (NPI 1891780300) received approximately $8K in total Medicare Part B payments, serving 86 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1891780300

Joan DugganM.D.

Infectious DiseaseToledo, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

132

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 241 Infectious Disease providers in OH — bottom quintile (cohort median 426).

PRESCRIBING · PART D · 2024

Total Rx claims

1,300

Beneficiaries

—

Total drug cost

$2.4M

Distinct drugs

Brand share

62.7%

Top prescribed drugs

Bictegrav/Emtricit/Tenofov Ala414 claims

Dolutegravir Sodium121 claims

Emtricitabine/Tenofov Alafenam114 claims

Atorvastatin Calcium94 claims

Amlodipine Besylate64 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$39

Payment records

By payment type

Food and Beverage$39

Top paying entities

Food and Beverage$39

REFERRAL NETWORK

Where Joan Duggan'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). 14 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jacob Bieszczad Diagnostic Radiology · Toledo, OH	27	53
Hassan Semaan Diagnostic Radiology · Napoleon, OH	26	36
NPI 1225021108	23	36
Samer Khouri Cardiology · Toledo, OH	22	37
Laura Murphy Cardiology · Toledo, OH	17	28
THE TOLEDO HOSPITAL	15	45
Jihad Abbas Vascular Surgery · Toledo, OH	15	65
Munier Nazzal Vascular Surgery · Toledo, OH	15	58
David Bingham Certified Clinical Nurse Specialist · Toledo, OH	14	99
MERCY HEALTH - ST VINCENT MEDICAL CENTER LLC	14	34
Blair Grubb Cardiology · Toledo, OH	13	18
Youngsook Yoon Pulmonary Disease · Toledo, OH	12	42

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