PROVIDER PROFILE · NPI 1629150974

Kartik ViswanathanMD

PRACTICEWILLIAM W BACKUS HOSPITALSee all providers at this practice →

Internal MedicineNorwich, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

579

Unique beneficiaries

—

Total services

720

Distinct HCPCS

Medicare payment

$27K

Peer benchmark

Total Medicare services vs. 1,650 Internal Medicine providers in CT — above median (cohort median 549).

PRESCRIBING · PART D · 2024

Total Rx claims

4,386

Beneficiaries

—

Total drug cost

$323K

Distinct drugs

Brand share

19.9%

Top prescribed drugs

Atorvastatin Calcium260 claims

Lisinopril256 claims

Omeprazole209 claims

Amlodipine Besylate185 claims

Gabapentin185 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$20

Payment records

By payment type

Food and Beverage$20

Top paying entities

Food and Beverage$20

REFERRAL NETWORK

Where Kartik Viswanathan'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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	136	378
THE WILLIAM W BACKUS HOSPITAL	127	513
Sarah Robertson Nurse Practitioner · Norwich, CT	36	93
DALAL, AJAY	23	48
HARTFORD HEALTHCARE AT HOME, INC	22	46
LAWRENCE AND MEMORIAL HOSPITAL, INC.	20	39
Justin Routhier Diagnostic Radiology · Boston, MA	15	27
Ting Li Cardiology · Norwich, CT	11	24

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