PROVIDER PROFILE · NPI 1780742262

David ZerrienMD

PRACTICECOUNTY OF WINNEBAGOSee all providers at this practice →

PsychiatryOshkosh, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

244

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 375 Psychiatry providers in WI — above median (cohort median 210).

PRESCRIBING · PART D · 2024

Total Rx claims

9,965

Beneficiaries

—

Total drug cost

$1.0M

Distinct drugs

Brand share

13.8%

Top prescribed drugs

Olanzapine831 claims

Escitalopram Oxalate751 claims

Buspirone Hcl716 claims

Quetiapine Fumarate682 claims

Risperidone522 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$18

Payment records

By payment type

Food and Beverage$18

REFERRAL NETWORK

Where David Zerrien'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY MEDICAL CENTER OF OSHKOSH, INC.	31	76
ASCENSION NE WISCONSIN, INC	16	29
AURORA MEDICAL CENTER OF OSHKOSH, INC	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