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PROVIDER PROFILE · NPI 1598870628

Richard NierenbergMD

PRACTICESHAHVAR LLCSee all providers at this practice →
Internal MedicinePhoenix, AZI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
501
Unique beneficiaries
—
Total services
700
Distinct HCPCS
4
Medicare payment
$70K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,880 Internal Medicine providers in AZ — above median (cohort median 646).
PRESCRIBING · PART D · 2024
Total Rx claims
302
Beneficiaries
—
Total drug cost
$24K
Distinct drugs
14
Brand share
41.1%
Top prescribed drugs
Apixaban39 claims
Prednisone34 claims
Cefuroxime Axetil30 claims
Atorvastatin Calcium24 claims
Clopidogrel Bisulfate24 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Richard Nierenberg'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). 39 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
SUMMIT HEALTHCARE ASSOCIATION360909
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76175
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County Of Volusia
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59127
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5286
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51130
SULBARAN, TULIO49140
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.