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PROVIDER PROFILE · NPI 1629064464

Gregory ShirkDC

PRACTICESHIRK PCSee all providers at this practice →
ChiropracticMason City, IAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PricingContactPrivacyTerms
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
165
Unique beneficiaries
—
Total services
1,683
Distinct HCPCS
2
Medicare payment
$43K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,023 Chiropractic providers in IA — top quintile (cohort median 498).
REFERRAL NETWORK

Where Gregory Shirk'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). 18 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MERCY HEALTH SERVICES-IOWA CORP1721,680
Gary Swenson
Diagnostic Radiology · Mason City, IA
3466
Ryan Smith
Diagnostic Radiology · Mason City, IA
2540
William Matthews
Diagnostic Radiology · Mason City, IA
1840
Robert Berg
Interventional Radiology · Mason City, IA
1825
Byron Beasley
Cardiology · Mason City, IA
1878
Travis Petree
Internal Medicine · Minot, ND
1732
JUFFER, KENT1621
HARLAN, BRUCE16137
Gholam Zadeii
Internal Medicine · Rancho Mirage, CA
1583
Mark Meyer
Ophthalmology · Mason City, IA
1435
Linda Floden
Family Practice · Mason City, IA
1481
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.