What is Gregory Koshkarian's specialty?

Gregory Koshkarian (NPI 1164425096) is a Medicare-billing provider whose primary specialty is Cardiology in Tucson, AZ.

Where does Gregory Koshkarian practice?

Gregory Koshkarian practices in Tucson, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1164425096.

How much does Medicare pay Gregory Koshkarian?

Gregory Koshkarian (NPI 1164425096) received approximately $432K in total Medicare Part B payments, serving 1,362 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1164425096

Gregory KoshkarianMD

PRACTICEHEART CARE OF SOUTHERN ARIZONA, PCSee all providers at this practice →

CardiologyTucson, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,797

Unique beneficiaries

—

Total services

11,916

Distinct HCPCS

Medicare payment

$426K

Peer benchmark

Total Medicare services vs. 363 Cardiology providers in AZ — top quintile (cohort median 2,847).

PRESCRIBING · PART D · 2024

Total Rx claims

10,098

Beneficiaries

—

Total drug cost

$2.9M

Distinct drugs

Brand share

27.1%

Top prescribed drugs

Metoprolol Succinate1,020 claims

Apixaban742 claims

Amlodipine Besylate738 claims

Rosuvastatin Calcium676 claims

Atorvastatin Calcium565 claims

QUALITY · MIPS · 2024

Final MIPS score

90.2

Quality

83.8

Cost

79.2

Improvement activities

40.0

Promoting interop.

97.0

Payment adjustment

0.64%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Top paying entities

Food and Beverage$2K

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Gregory Koshkarian'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). 72 inbound referrers · 151 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHWEST HOSPITAL LLC	387	867
ORO VALLEY HOSPITAL LLC	317	700
Gordon Watson Cardiology · Tucson, AZ	133	219
KARTCHNER, ZANE	127	214
TERCAN, DIANNA	116	372
Kevin Kelly Diagnostic Radiology · Tucson, AZ	106	185
YOSHINO, MARK	97	179
STEMMER, JASON	77	92
Stephanie Reddick Diagnostic Radiology · Tucson, AZ	76	120
Guy Borders Diagnostic Radiology · Tucson, AZ	67	118
R Christopher Dillon Diagnostic Radiology · Tucson, AZ	59	115
Golder Ranch Fire District Ambulance Service Provider · Tucson, AZ	59	93

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NORTHWEST HOSPITAL LLC	502	1,315
ORO VALLEY HOSPITAL LLC	371	944
Sonora Quest Laboratories Llc Clinical Laboratory · Phoenix, AZ	213	653
Gordon Watson Cardiology · Tucson, AZ	172	383
Laboratory Corporation Of America Clinical Laboratory · Phoenix, AZ	146	360
STEMMER, JASON	117	219
Marcin Turecki Diagnostic Radiology · Tucson, AZ	113	249
TERCAN, DIANNA	106	357
Emi Masuda Interventional Radiology · Tucson, AZ	89	176
YOSHINO, MARK	88	186
Gregory Labenz Diagnostic Radiology · Tucson, AZ	81	153
Guy Borders Diagnostic Radiology · Tucson, AZ	80	146

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