PROVIDER PROFILE · NPI 1902805773

Irwin FeintzeigM.D.

PRACTICENEPHROLOGY ASSOCIATES, PCSee all providers at this practice →

NephrologyTrumbull, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

298

Unique beneficiaries

—

Total services

542

Distinct HCPCS

Medicare payment

$71K

Peer benchmark

Total Medicare services vs. 109 Nephrology providers in CT — above median (cohort median 1,019).

PRESCRIBING · PART D · 2024

Total Rx claims

369

Beneficiaries

—

Total drug cost

$66K

Distinct drugs

Brand share

27.4%

Top prescribed drugs

Amlodipine Besylate64 claims

Empagliflozin58 claims

Losartan Potassium53 claims

Calcitriol52 claims

Lisinopril24 claims

QUALITY · MIPS · 2024

Final MIPS score

21.4

Quality

0.0

Cost

71.2

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.44%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$28

Payment records

By payment type

Food and Beverage$28

REFERRAL NETWORK

Where Irwin Feintzeig'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). 87 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
William Hunt Nephrology · Trumbull, CT	323	1,173
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	209	670
Robert Kim Nephrology · Trumbull, CT	191	502
American Medical Response Of Connecticut Incorporated Ambulance Service Provider · New Haven, CT	138	625
Rishi Razdan Interventional Radiology · Jacksonville, FL	84	167
Paul Nussbaum Internal Medicine · Bridgeport, CT	69	140
Terence Hughes Diagnostic Radiology · Shelton, CT	54	143
Ram Gordon Cardiology · Fairfield, CT	53	140
Irma Fotjadhi Nuclear Medicine · Bridgeport, CT	49	154
THE GRIFFIN HOSPITAL	48	84
Edward Tuohy Interventional Cardiology · Fairfield, CT	46	105
NPI 1053384685	46	82

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