What is Siamak Marzban's specialty?

Siamak Marzban (NPI 1164447959) is a Medicare-billing provider whose primary specialty is Internal Medicine in San Pedro, CA.

Where does Siamak Marzban practice?

Siamak Marzban practices in San Pedro, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1164447959.

How much does Medicare pay Siamak Marzban?

Siamak Marzban (NPI 1164447959) received approximately $53K in total Medicare Part B payments, serving 57 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1164447959

Siamak MarzbanM.D.

Internal MedicineSan Pedro, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

130

Unique beneficiaries

—

Total services

500

Distinct HCPCS

Medicare payment

$51K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

1,742

Beneficiaries

—

Total drug cost

$60K

Distinct drugs

Brand share

23.2%

Top prescribed drugs

Atorvastatin Calcium160 claims

Hydrocodone/Acetaminophen144 claims

Lisinopril119 claims

Amlodipine Besylate89 claims

Levothyroxine Sodium77 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Home health agency

Home health agency

Hospital

Hospital

REFERRAL NETWORK

Where Siamak Marzban'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). 0 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

No inbound pairs above the suppression threshold.

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	18	73
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	14	75

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