What is Siddharth Tambar's specialty?

Siddharth Tambar (NPI 1477655488) is a Medicare-billing provider whose primary specialty is Rheumatology in Chicago, IL.

Where does Siddharth Tambar practice?

Siddharth Tambar practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1477655488.

How much does Medicare pay Siddharth Tambar?

Siddharth Tambar (NPI 1477655488) received approximately $254K in total Medicare Part B payments, serving 124 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1477655488

Siddharth TambarMD

PRACTICECHICAGO ARTHRITIS LLCSee all providers at this practice →

RheumatologyChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

375

Unique beneficiaries

—

Total services

10,086

Distinct HCPCS

Medicare payment

$136K

Peer benchmark

Total Medicare services vs. 205 Rheumatology providers in IL — above median (cohort median 2,209).

PRESCRIBING · PART D · 2024

Total Rx claims

173

Beneficiaries

—

Total drug cost

$144K

Distinct drugs

Brand share

37.0%

Top prescribed drugs

Prednisone37 claims

Methotrexate Sodium29 claims

Leflunomide24 claims

Belimumab23 claims

Hydroxychloroquine Sulfate18 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$683

Payment records

By payment type

Food and Beverage$683

Top paying entities

Food and Beverage$683

REFERRAL NETWORK

Where Siddharth Tambar'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). 1 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHWESTERN MEMORIAL HEALTHCARE	15	48

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Quest Diagnostics Llc Il Clinical Laboratory · Wood Dale, IL	48	160
PRESENCE CHICAGO HOSPITALS NETWORK	39	118
ADVOCATE NORTH SIDE HEALTH NETWORK	19	76
NORTHWESTERN MEMORIAL HEALTHCARE	16	60
Lee-Ming Liou Diagnostic Radiology · Columbus, OH	16	36
A2cl Services, Llc Clinical Laboratory · West Allis, WI	12	45

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