What is Richard Nierenberg's specialty?

Richard Nierenberg (NPI 1598870628) is a Medicare-billing provider whose primary specialty is Internal Medicine in Phoenix, AZ.

Where does Richard Nierenberg practice?

Richard Nierenberg practices in Phoenix, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1598870628.

How much does Medicare pay Richard Nierenberg?

Richard Nierenberg (NPI 1598870628) received approximately $70K in total Medicare Part B payments, serving 290 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1598870628

Richard NierenbergMD

PRACTICESHAHVAR LLCSee all providers at this practice →

Internal MedicinePhoenix, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

501

Unique beneficiaries

—

Total services

700

Distinct HCPCS

Medicare payment

$70K

Peer benchmark

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

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

Physician	Patients	Visits
SUMMIT HEALTHCARE ASSOCIATION	360	909
NPI 1003896820	136	482
Grant Berges Diagnostic Radiology · Show Low, AZ	123	389
Michael Foote Internal Medicine · Pinetop, AZ	101	189
Abdul Memon Cardiology · Globe, AZ	95	221
FULLER, BRIAN	94	253
Imran Ata Cardiology · Tucson, AZ	76	175
DAVIES, SUSAN	60	135
County Of Volusia Ambulance Service Provider · Holly Hill, FL	59	127
Mark Mathurin Family Practice · Tempe, AZ	52	86
Victor Staheli Emergency Medicine · Show Low, AZ	51	130
SULBARAN, TULIO	49	140

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