What is Jack Stewart's specialty?

Jack Stewart (NPI 1942278452) is a Medicare-billing provider whose primary specialty is Pulmonary Disease in Orange, CA.

Where does Jack Stewart practice?

Jack Stewart practices in Orange, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1942278452.

How much does Medicare pay Jack Stewart?

Jack Stewart (NPI 1942278452) received approximately $159K in total Medicare Part B payments, serving 512 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1942278452

Jack StewartM.D.

Pulmonary DiseaseOrange, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,086

Unique beneficiaries

—

Total services

2,073

Distinct HCPCS

Medicare payment

$153K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

3,412

Beneficiaries

—

Total drug cost

$2.5M

Distinct drugs

Brand share

49.7%

Top prescribed drugs

Fluticasone/Umeclidin/Vilanter624 claims

Prednisone477 claims

Montelukast Sodium344 claims

Albuterol Sulfate266 claims

Fluticasone/Vilanterol142 claims

QUALITY · MIPS · 2024

Final MIPS score

22.9

Quality

0.0

Cost

76.3

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.25%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

105

By payment type

Food and Beverage$3K

Education$17

Top paying entities

Food and Beverage$3K

Education$17

REFERRAL NETWORK

Where Jack Stewart'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). 44 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	183	601
Peter Piampiano Diagnostic Radiology · Knoxville, TN	85	309
Kirk Ohanian Diagnostic Radiology · Fort Worth, TX	65	155
Mark Masotto Diagnostic Radiology · Orange, CA	61	147
Dan Vu Diagnostic Radiology · Orange, CA	61	136
Hieu Truong Diagnostic Radiology · Orange, CA	57	154
Richard Cho Interventional Radiology · Orange, CA	57	132
David Karlin Diagnostic Radiology · Orange, CA	47	91
Kenneth Meng Diagnostic Radiology · Orange, CA	43	123
NPI 1053389254	38	110
Elizabeth Cambray-Forker Diagnostic Radiology · Orange, CA	32	73
Shu Yuan Liao Pathology · Orange, CA	27	89

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