What is Alexander Zwart's specialty?

Alexander Zwart (NPI 1225018856) is a Medicare-billing provider whose primary specialty is Endocrinology in Tucson, AZ.

Where does Alexander Zwart practice?

Alexander Zwart practices in Tucson, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1225018856.

How much does Medicare pay Alexander Zwart?

Alexander Zwart (NPI 1225018856) received approximately $118K in total Medicare Part B payments, serving 791 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1225018856

Alexander ZwartMD, FACP

PRACTICECATALINA EAR, NOSE & THROATSee all providers at this practice →

EndocrinologyTucson, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,054

Unique beneficiaries

—

Total services

1,365

Distinct HCPCS

Medicare payment

$114K

Peer benchmark

Total Medicare services vs. 92 Endocrinology providers in AZ — below median (cohort median 2,538).

PRESCRIBING · PART D · 2024

Total Rx claims

6,272

Beneficiaries

—

Total drug cost

$2.7M

Distinct drugs

Brand share

35.6%

Top prescribed drugs

Levothyroxine Sodium1,022 claims

Atorvastatin Calcium303 claims

Methimazole274 claims

Liothyronine Sodium249 claims

Semaglutide229 claims

QUALITY · MIPS · 2024

Final MIPS score

88.9

Quality

86.7

Cost

77.1

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

0.58%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$326

Payment records

By payment type

Food and Beverage$326

Top paying entities

Food and Beverage$326

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Alexander Zwart'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). 20 inbound referrers · 37 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHWEST HOSPITAL LLC	114	233
David Alster Endocrinology · Tucson, AZ	88	159
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC	57	172
ORO VALLEY HOSPITAL LLC	49	93
CARONDELET HEALTH NETWORK	40	65
Veracyte, Inc. Clinical Laboratory · South San Francisco, CA	25	31
YOSHINO, MARK	23	43
Kevin Kelly Diagnostic Radiology · Tucson, AZ	23	41
BANNER PHARMACY SERVICES LLC	22	50
Southwest Ambulance Of Tucson Inc Ambulance Service Provider · Tucson, AZ	21	53
KARTCHNER, ZANE	17	29
TUCSON MEDICAL CENTER	16	35

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Laboratory Corporation Of America Clinical Laboratory · Phoenix, AZ	289	619
Sonora Quest Laboratories Llc Clinical Laboratory · Phoenix, AZ	149	447
NORTHWEST HOSPITAL LLC	106	193
David Alster Endocrinology · Tucson, AZ	76	125
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC	51	163
ORO VALLEY HOSPITAL LLC	48	83
CARONDELET HEALTH NETWORK	32	52
YOSHINO, MARK	27	40
Gregory Labenz Diagnostic Radiology · Tucson, AZ	21	40
Laboratory Corporation Of America Holdings Clinical Laboratory · Burlington, NC	19	33
Beth Prostejovsky Physician Assistant · Front Royal, VA	19	32
Kevin Kelly Diagnostic Radiology · Tucson, AZ	18	26

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