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PROVIDER PROFILE · NPI 1033160296

Nathan ZziwambazzaMD

PRACTICEST JOSEPH MERCY HOSPITALSee all providers at this practice →
Emergency MedicineHowell, MII
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 230022
Hospital
CCN 230779
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
222
Beneficiaries
—
Total drug cost
$2K
Distinct drugs
9
Brand share
24.8%
Top prescribed drugs
Methylprednisolone47 claims
Cephalexin33 claims
Ondansetron27 claims
Cyclobenzaprine Hcl26 claims
Ketorolac Tromethamine26 claims
QUALITY · MIPS · 2024
Final MIPS score
87.3
Quality
70.9
Cost
92.9
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
0.52%
Group
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
210
Unique beneficiaries
—
Total services
233
Distinct HCPCS
5
Medicare payment
$22K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 2,370 Emergency Medicine providers in MI — below median (cohort median 308).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Nathan Zziwambazza'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). 16 inbound referrers · 60 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
SPECTRUM HEALTH PRIMARY CARE PARTNERS91199
ASCENSION BORGESS ALLEGAN HOSPITAL81341
James Sutherland
Diagnostic Radiology · Grand Haven, MI
3993
MYMICHIGAN MEDICAL CENTER ALMA3881
ALLEGAN PROFESSIONAL HEALTH SERVICES INC38103
NPI 122506632738134
MERCY PHYSICIAN NETWORK3780
Raymond Rabideau
Family Practice · Grand Haven, MI
30164
Philip Hartgerink
Diagnostic Radiology · Allegan, MI
2858
Steven Schmidt
Internal Medicine · Traverse City, MI
2551
James Walters
Emergency Medicine · Muskegon, MI
2488
Joseph Ortiz
Internal Medicine · Grand Haven, MI
15111
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
TRINITY HEALTH GRAND HAVEN HOSPITAL3301,642
ASCENSION BORGESS ALLEGAN HOSPITAL183811
REGENTS OF THE UNIVERSITY OF MICHIGAN167353
Michael Schmidt
Diagnostic Radiology · Grand Haven, MI
125333
James Sutherland
Diagnostic Radiology · Grand Haven, MI
108285
Jeffrey Stuk
Diagnostic Radiology · Grand Haven, MI
104262
SPECTRUM HEALTH PRIMARY CARE PARTNERS92204
Philip Hartgerink
Diagnostic Radiology · Allegan, MI
87215
Steven Schmidt
Internal Medicine · Traverse City, MI
82202
ALLEGAN PROFESSIONAL HEALTH SERVICES INC64174
Haney Assaad
Internal Medicine · Orlando, FL
58180
Life Ems Of Kalamazoo, Inc
Ambulance Service Provider · Kalamazoo, MI
55163
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.