What is Siamak Rahman's specialty?

Siamak Rahman (NPI 1861438566) is a Medicare-billing provider whose primary specialty is Anesthesiology in Los Angeles, CA.

Where does Siamak Rahman practice?

Siamak Rahman practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1861438566.

How much does Medicare pay Siamak Rahman?

Siamak Rahman (NPI 1861438566) received approximately $49K in total Medicare Part B payments, serving 278 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861438566

Siamak RahmanMD

AnesthesiologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

386

Unique beneficiaries

—

Total services

704

Distinct HCPCS

Medicare payment

$43K

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — top quintile (cohort median 182).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

96.5

Quality

93.3

Cost

79.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.90%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Siamak Rahman'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). 29 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Donald Roback Diagnostic Radiology · Manhattan Beach, CA	62	147
William Wallace Pathology · Los Angeles, CA	32	86
REGENTS OF THE UNIV OF CALIFORNIA	31	63
Kathleen Brown Diagnostic Radiology · Los Angeles, CA	30	60
Parisa Partownavid Anesthesiology · Los Angeles, CA	29	55
Benjamin Plotkin Diagnostic Radiology · Los Angeles, CA	27	62
Hanlin Wang Pathology · Los Angeles, CA	27	89
Joel Stockman Anesthesiology · Los Angeles, CA	27	204
Bita Naini Pathology · Los Angeles, CA	26	66
Unilab Corporation Clinical Laboratory · West Hills, CA	25	74
Nir Hoftman Anesthesiology · Los Angeles, CA	25	47
Fereidoun Abtin Diagnostic Radiology · Los Angeles, CA	24	53

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