PROVIDER PROFILE · NPI 1649266032

Mark WeissigM.D.

PRACTICEST JUDE HOSPITAL YORBA LINDASee all providers at this practice →

Pulmonary DiseaseFullerton, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,054

Unique beneficiaries

—

Total services

1,555

Distinct HCPCS

Medicare payment

$120K

Peer benchmark

Total Medicare services vs. 901 Pulmonary Disease providers in CA — above median (cohort median 927).

PRESCRIBING · PART D · 2024

Total Rx claims

4,764

Beneficiaries

—

Total drug cost

$1.7M

Distinct drugs

Brand share

47.9%

Top prescribed drugs

Fluticasone/Umeclidin/Vilanter439 claims

Albuterol Sulfate310 claims

Prednisone299 claims

Budesonide/Glycopyr/Formoterol268 claims

Montelukast Sodium262 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$346

Payment records

By payment type

Food and Beverage$346

REFERRAL NETWORK

Where Mark Weissig'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). 36 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Victor Lee Pathology · Oceanside, CA	360	1,862
ST JUDE HOSPITAL INC	350	1,901
Danh Nguyen Diagnostic Radiology · Riverside, CA	85	227
STAMBUK, EDGAR	57	153
Bradley Jackson Diagnostic Radiology · Fullerton, CA	48	99
Arman Forouzannia Diagnostic Radiology · Lynnwood, WA	46	106
Unilab Corporation Clinical Laboratory · West Hills, CA	46	165
Samuel Maxwell Diagnostic Radiology · Fullerton, CA	45	99
Hao Ngo Diagnostic Radiology · Fullerton, CA	45	106
Eugene Byun Cardiology · Fullerton, CA	39	125
UNGER, PHILLIP	38	86
Errajith Bertrand De Silva Critical Care (Intensivists) · Riverside, CA	28	107

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