What is Rishu Marwaha's specialty?

Rishu Marwaha (NPI 1457490294) is a Medicare-billing provider whose primary specialty is Internal Medicine in Pomona, CA.

Where does Rishu Marwaha practice?

Rishu Marwaha practices in Pomona, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1457490294.

How much does Medicare pay Rishu Marwaha?

Rishu Marwaha (NPI 1457490294) received approximately $84K in total Medicare Part B payments, serving 244 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1457490294

Rishu MarwahaMD

Internal MedicinePomona, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

526

Unique beneficiaries

—

Total services

828

Distinct HCPCS

Medicare payment

$79K

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

7,960

Beneficiaries

—

Total drug cost

$630K

Distinct drugs

131

Brand share

18.1%

Top prescribed drugs

Levothyroxine Sodium510 claims

Atorvastatin Calcium491 claims

Losartan Potassium370 claims

Amlodipine Besylate328 claims

Rosuvastatin Calcium295 claims

QUALITY · MIPS · 2024

Final MIPS score

78.1

Quality

40.9

Cost

74.8

Improvement activities

40.0

Promoting interop.

75.0

Payment adjustment

0.13%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$45

Payment records

By payment type

Food and Beverage$45

Top paying entities

Food and Beverage$45

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050140

Hospital

REFERRAL NETWORK

Where Rishu Marwaha'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). 6 inbound referrers · 16 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
POMONA VALLEY HOSPITAL MEDICAL CENTER	107	518
Unilab Corporation Clinical Laboratory · West Hills, CA	24	223
Hamidreza Torshizy Diagnostic Radiology · San Diego, CA	18	37
Johnson Lightfoote Diagnostic Radiology · Pomona, CA	16	33
SCHAEFER AMBULANCE SERVICE, INC	12	33
Christina Benedict Diagnostic Radiology · Pomona, CA	11	30

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
POMONA VALLEY HOSPITAL MEDICAL CENTER	69	356
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	42	182
Stephen To Diagnostic Radiology · Pomona, CA	28	75
SAN ANTONIO REGIONAL HOSPITAL	23	64
Unilab Corporation Clinical Laboratory · West Hills, CA	22	183
Rama Thumati Cardiology · Pomona, CA	20	49
Paul Reisch Diagnostic Radiology · Pomona, CA	17	80
Manjusha Gupta Internal Medicine · Pomona, CA	17	60
CASA COLINA HOSPITAL AND CENTERS FOR HEALTHCARE	16	70
Hamidreza Torshizy Diagnostic Radiology · San Diego, CA	13	34
Nilem Patel Endocrinology · Pomona, CA	13	54
SCHAEFER AMBULANCE SERVICE, INC	13	38

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