What is Peter Zamfirescu Alexander's specialty?

Peter Zamfirescu Alexander (NPI 1548245830) is a Medicare-billing provider whose primary specialty is Pulmonary Disease in Riverside, CA.

Where does Peter Zamfirescu Alexander practice?

Peter Zamfirescu Alexander practices in Riverside, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1548245830.

How much does Medicare pay Peter Zamfirescu Alexander?

Peter Zamfirescu Alexander (NPI 1548245830) received approximately $114K in total Medicare Part B payments, serving 443 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1548245830

Peter Zamfirescu AlexanderM.D.

Pulmonary DiseaseRiverside, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

585

Unique beneficiaries

—

Total services

1,194

Distinct HCPCS

Medicare payment

$110K

Peer benchmark

Total Medicare services vs. 901 Pulmonary Disease providers in CA — above median (cohort median 927).

PRESCRIBING · PART D · 2024

Total Rx claims

758

Beneficiaries

—

Total drug cost

$157K

Distinct drugs

Brand share

52.4%

Top prescribed drugs

Albuterol Sulfate125 claims

Fluticasone/Umeclidin/Vilanter92 claims

Montelukast Sodium72 claims

Prednisone63 claims

Omeprazole57 claims

QUALITY · MIPS · 2024

Final MIPS score

73.6

Quality

52.1

Cost

66.4

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Peter Zamfirescu Alexander'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). 52 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
RIVERSIDE HEALTHCARE SYSTEM, L.P.	341	1,131
Ardavan Afshar Diagnostic Radiology · Riverside, CA	159	978
Shareef Riad Diagnostic Radiology · San Diego, CA	112	373
Ramin Akhavan Critical Care (Intensivists) · Corona, CA	82	511
Johnny Liquete Infectious Disease · Moreno Valley, CA	77	523
David Lebeau Diagnostic Radiology · Riverside, CA	72	306
MEYER, MICHELLE	64	190
Unilab Corporation Clinical Laboratory · West Hills, CA	57	175
Hassan Bencheqroun Critical Care (Intensivists) · Palm Springs, CA	53	285
Andro Sharobiem Internal Medicine · Riverside, CA	52	463
Darren Okada Pathology · Riverside, CA	47	138
Nawal Badran Hospitalist · Riverside, CA	40	135

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events