What is Gimha Gunawardana's specialty?

Gimha Gunawardana (NPI 1720274921) is a Medicare-billing provider whose primary specialty is Internal Medicine in Pomona, CA.

Where does Gimha Gunawardana practice?

Gimha Gunawardana practices in Pomona, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1720274921.

How much does Medicare pay Gimha Gunawardana?

Gimha Gunawardana (NPI 1720274921) received approximately $318K in total Medicare Part B payments, serving 492 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1720274921

Gimha GunawardanaM.D

PRACTICEGIMHA S GUNAWARDANA M D INCSee all providers at this practice →

Internal MedicinePomona, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,006

Unique beneficiaries

—

Total services

3,785

Distinct HCPCS

Medicare payment

$315K

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

3,145

Beneficiaries

—

Total drug cost

$177K

Distinct drugs

Brand share

17.5%

Top prescribed drugs

Levothyroxine Sodium212 claims

Atorvastatin Calcium200 claims

Pantoprazole Sodium113 claims

Tamsulosin Hcl109 claims

Amlodipine Besylate92 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$75

Payment records

By payment type

Food and Beverage$75

Top paying entities

Food and Beverage$75

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (10)

Home health agency

Home health agency

Hospice

Hospice

Hospital

Hospital

Hospital

Hospital

Inpatient rehabilitation facility

CCN 052037

Long-term care hospital

REFERRAL NETWORK

Where Gimha Gunawardana'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). 47 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CANIZALES, CARLOS	89	317
John Goffigan Diagnostic Radiology · Edina, MN	85	292
AKAMINE, JAMES	74	247
THC - ORANGE COUNTY, LLC	64	188
Stuart Berry Diagnostic Radiology · Rancho Cucamonga, CA	52	151
PALENCHAR, BARTHOLOMEW	49	153
Vinod Dhawan Infectious Disease · Pomona, CA	38	194
Nicolas Nassar Internal Medicine · San Bernardino, CA	38	225
Deepak Thiagarajan Hospitalist · Rancho Cucamonga, CA	36	79
Bipin Patadia Cardiology · Upland, CA	34	193
Altaf Ali Cardiology · Chino, CA	33	71
Aaron Jun Diagnostic Radiology · Rancho Cucamonga, CA	32	61

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