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PROVIDER PROFILE · NPI 1134284268

Ernie RifferMD

Internal MedicinePhoenix, AZI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 030024
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
8,068
Beneficiaries
—
Total drug cost
$588K
Distinct drugs
135
Brand share
18.8%
Top prescribed drugs
Atorvastatin Calcium630 claims
Levothyroxine Sodium450 claims
Amlodipine Besylate323 claims
Lisinopril273 claims
Tamsulosin Hcl268 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
669
Unique beneficiaries
—
Total services
843
Distinct HCPCS
6
Medicare payment
$71K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,880 Internal Medicine providers in AZ — above median (cohort median 646).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$125
Payment records
1
By payment type
Food and Beverage$125
Top paying entities
Food and Beverage$125
REFERRAL NETWORK

Where Ernie Riffer'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). 0 inbound referrers · 9 outbound destinations.

Receives referrals from
Inbound — who sends patients here
No inbound pairs above the suppression threshold.
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Sonora Quest Laboratories Llc
Clinical Laboratory · Phoenix, AZ
223736
Laboratory Corporation Of America
Clinical Laboratory · Phoenix, AZ
1649
Jeremy Van Buren
Ophthalmology · Phoenix, AZ
1646
SMI IMAGING LLC1531
HONORHEALTH1324
BANNER - UNIVERSITY MEDICAL CENTER PHOENIX1219
HONORHEALTH1121
ARIZONA CARDIAC SONOGRAPHERS LLC1114
Richard Heuser
Interventional Cardiology · Phoenix, AZ
1113
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.