PROVIDER PROFILE · NPI 1902024532

Maryum MerchantM.D.

PRACTICEJOHN A LEE MD A MEDICAL CORPORATIONSee all providers at this practice →

Pulmonary DiseaseWestlake Village, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,893

Unique beneficiaries

—

Total services

3,043

Distinct HCPCS

Medicare payment

$231K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

3,075

Beneficiaries

—

Total drug cost

$1.8M

Distinct drugs

Brand share

65.3%

Top prescribed drugs

Fluticasone/Umeclidin/Vilanter560 claims

Albuterol Sulfate296 claims

Montelukast Sodium228 claims

Fluticasone/Vilanterol184 claims

Prednisone170 claims

QUALITY · MIPS · 2024

Final MIPS score

87.5

Quality

79.4

Cost

73.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.53%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Consulting Fee$2K

Education$174

REFERRAL NETWORK

Where Maryum Merchant'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). 40 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
LOS ROBLES REGIONAL MEDICAL CENTER	144	556
Donald Roback Diagnostic Radiology · Manhattan Beach, CA	80	189
Rebecca Liu Pulmonary Disease · Dallas, TX	67	240
Unilab Corporation Clinical Laboratory · West Hills, CA	50	183
Roman Leibzon Cardiology · Burbank, CA	50	187
REGENTS OF THE UNIV OF CALIFORNIA	45	134
Geoffrey Graham Internal Medicine · Thousand Oaks, CA	42	183
Sanjiv Sheel Diagnostic Radiology · Edina, MN	41	121
American Medical Response Ambulance Service Inc Ambulance Service Provider · Moorpark, CA	41	85
Monica Amantia Diagnostic Radiology · Studio City, CA	41	123
Kevin Pimstone Internal Medicine · Los Angeles, CA	40	121
Tracy Huynh Interventional Cardiology · Dublin, CA	36	155

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