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PROVIDER PROFILE · NPI 1598717688

Chadwick NachtmanM.D.

PRACTICEMERCY FAMILY PHARMACYSee all providers at this practice →
Family PracticeDubuque, IAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
11,330
Beneficiaries
—
Total drug cost
$509K
Distinct drugs
136
Brand share
15.6%
Top prescribed drugs
Atorvastatin Calcium785 claims
Omeprazole517 claims
Lisinopril499 claims
Levothyroxine Sodium481 claims
Furosemide411 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
6,664
Unique beneficiaries
—
Total services
26,874
Distinct HCPCS
87
Medicare payment
$214K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,109 Family Practice providers in IA — top quintile (cohort median 805).
REFERRAL NETWORK

Where Chadwick Nachtman'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Mark Janes
Pulmonary Disease · Dubuque, IA
19127
Michael Fleege
Diagnostic Radiology · Dubuque, IA
1854
James Stecher
Diagnostic Radiology · Iowa City, IA
1846
MERRICK, ROBERT1643
ENGELKEN, JOHN1450
Jason Hughes
Diagnostic Radiology · Eden Prairie, MN
1442
Michael Kuennen
Hospitalist · Dubuque, IA
1463
Kelly Brown
Emergency Medicine · Detroit, MI
1346
MERCY HEALTH SERVICES-IOWA, CORP1328
Amy Reisen
Nurse Practitioner · Pensacola, FL
13208
Ramanujam Ramabadran
Cardiology · Dubuque, IA
1155
Michael Riley
Diagnostic Radiology · Dubuque, IA
1123
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.