PROVIDER PROFILE · NPI 1578539516

Robert SiewM.D.

PRACTICEROBERT SIEW MD A MEDICAL CORPORATIONSee all providers at this practice →

Internal MedicinePasadena, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,507

Unique beneficiaries

—

Total services

3,643

Distinct HCPCS

Medicare payment

$257K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

1,875

Beneficiaries

—

Total drug cost

$222K

Distinct drugs

Brand share

26.7%

Top prescribed drugs

Apixaban160 claims

Atorvastatin Calcium138 claims

Amlodipine Besylate125 claims

Lisinopril76 claims

Carvedilol75 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

71.8

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$338

Payment records

By payment type

Food and Beverage$338

REFERRAL NETWORK

Where Robert Siew'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). 126 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PASADENA HOSPITAL ASSOCIATION, LTD	634	2,292
Warren Lam Diagnostic Radiology · Pasadena, CA	263	1,068
Andy Wang Diagnostic Radiology · Pasadena, CA	162	440
City Of Pasadena Ambulance Service Provider · Pasadena, CA	160	514
Unilab Corporation Clinical Laboratory · West Hills, CA	158	550
LIS, LEON	141	569
Jose Tandoc Diagnostic Radiology · Arcadia, CA	125	538
Primex Clinical Laboratories Inc. Clinical Laboratory · Van Nuys, CA	117	367
Richard Reed Diagnostic Radiology · Pasadena, CA	106	330
CALIFORNIA CONVALESCENT HOSPITAL OF PASADENA INC	101	492
Christopher Hedley Diagnostic Radiology · Pasadena, CA	90	236
Wilson Wong Diagnostic Radiology · Arcadia, CA	89	331

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