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PROVIDER PROFILE · NPI 1225449028

Michelle ZackCRNA, APRN

PRACTICENORWALK MEDICAL GROUPSee all providers at this practice →
Certified Registered Nurse Anesthetist (CRNA)Norwalk, CTI
CROSS-REFERENCE

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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 070033
Hospital
CCN 070034
Hospital
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$391
Payment records
16
By payment type
Food and Beverage$391
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
157
Unique beneficiaries
—
Total services
158
Distinct HCPCS
4
Medicare payment
$14K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 679 Certified Registered Nurse Anesthetist (CRNA) providers in CT — top quintile (cohort median 102).
REFERRAL NETWORK

Where Michelle 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). 25 inbound referrers · 33 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
NORWALK HOSPITAL ASSOCIATION84171
Quest Diagnostics Llc
Clinical Laboratory · Wallingford, CT
4062
MICHAELSON, STEPHEN3149
Soma Karak
Pathology · Norwalk, CT
2831
RIBACK, HARVEY2765
Ronald Lee
Diagnostic Radiology · Norwalk, CT
2633
NORWALK HOSPITAL ASSOCIATION2225
Ryan Crawford
Diagnostic Radiology · Portland, OR
2128
Charles Augenbraun
Cardiology · Norwalk, CT
2134
Boris Sheynberg
Cardiology · Westport, CT
2130
Vladimir Koltchine
Anesthesiology · Norwalk, CT
2021
Richard Hughes
Anesthesiology · Norwalk, CT
1919
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
NORWALK HOSPITAL ASSOCIATION164286
Garrett Nguyen
Anesthesiology · Norwalk, CT
91100
NORWALK HOSPITAL ASSOCIATION4549
Gillian Levy
Pathology · Norwalk, CT
3843
Edward Strauss
Diagnostic Radiology · Norwalk, CT
2951
DICORATO, MICHAEL2937
Steven Bernstein
Diagnostic Radiology · Norwalk, CT
2849
Michael Bush
Pathology · Norwalk, CT
2633
Naveen Anand
Gastroenterology · Atlanta, GA
2464
Charles Adelmann
Gastroenterology · Norwalk, CT
2342
Frank Sammarco
Gastroenterology · Norwalk, CT
2346
MICHAELSON, STEPHEN2342
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.