PROVIDER PROFILE · NPI 1003828435

Cathy ZackMD

Family PracticeEast Hampton, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

107

Unique beneficiaries

—

Total services

110

Distinct HCPCS

Medicare payment

$16K

Peer benchmark

Total Medicare services vs. 532 Family Practice providers in CT — bottom quintile (cohort median 538).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 070020

Hospital

REFERRAL NETWORK

Where Cathy Zack'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). 32 inbound referrers · 73 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Stephen Franklin Cardiology · Middletown, CT	51	65
Adam Elias Diagnostic Radiology · Bedford, NH	45	59
Ravi Jain Diagnostic Radiology · Middletown, CT	39	49
Bruce Kovalenko Interventional Radiology · Bridgeport, CT	34	39
Robert Wolek Diagnostic Radiology · Middletown, CT	32	41
Michael Crain Diagnostic Radiology · Middletown, CT	29	37
Michael Johnson Diagnostic Radiology · Middletown, CT	29	45
Nancy Rini Diagnostic Radiology · Middletown, CT	28	31
MIDDLESEX HOSPITAL	23	26
Jeffrey Takahashi Diagnostic Radiology · Middletown, CT	22	34
Debmalya Mukherjee Internal Medicine · Boston, MA	22	29
Julie Lee Diagnostic Radiology · Lynnwood, WA	20	22

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MIDDLESEX HOSPITAL	185	357
Hunter's Ambulance Service, Inc. Ambulance Service Provider · Meriden, CT	162	273
Stephen Franklin Cardiology · Middletown, CT	65	78
Adam Elias Diagnostic Radiology · Bedford, NH	57	76
Michael Crain Diagnostic Radiology · Middletown, CT	55	77
Zaixiang Zhang Diagnostic Radiology · Middletown, CT	50	59
Subramanian Krishnan Cardiology · Middletown, CT	48	64
Joseph Corning Cardiology · Middletown, CT	46	65
Mojca Lorbar Cardiology · Middletown, CT	44	67
Ravi Jain Diagnostic Radiology · Middletown, CT	44	66
Bruce Kovalenko Interventional Radiology · Bridgeport, CT	41	59
Michael Johnson Diagnostic Radiology · Middletown, CT	40	47

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