What is John Karis's specialty?

John Karis (NPI 1609841790) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Phoenix, AZ.

Where does John Karis practice?

John Karis practices in Phoenix, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1609841790.

How much does Medicare pay John Karis?

John Karis (NPI 1609841790) received approximately $85K in total Medicare Part B payments, serving 1,064 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1609841790

John KarisM.D.

PRACTICEBAHAR LLCSee all providers at this practice →

Diagnostic RadiologyPhoenix, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,637

Unique beneficiaries

—

Total services

1,789

Distinct HCPCS

Medicare payment

$81K

Peer benchmark

Total Medicare services vs. 621 Diagnostic Radiology providers in AZ — below median (cohort median 4,389).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

86.3

Quality

75.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.47%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$248

Payment records

By payment type

Food and Beverage$248

Top paying entities

Food and Beverage$248

REFERRAL NETWORK

Where John Karis'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
Ralph Drosten Diagnostic Radiology · Tucson, AZ	105	254
PRENGER, ERIN	88	254
ORNSTEIN, SANFORD	85	224
WALLACE, ROBERT	70	166
Alan Pitt Diagnostic Radiology · Phoenix, AZ	60	150
Richard Sue Critical Care (Intensivists) · Gilbert, AZ	53	139
COONS, STEPHEN	44	56
Youngsoo Cho Cardiology · Phoenix, AZ	41	63
Lindley Bliss Hospitalist · Phoenix, AZ	35	60
R M Arizona Holdings Inc Ambulance Service Provider · Mesa, AZ	35	62
NPI 1316992407	34	71
Lynn Ashby Neurology · Phoenix, AZ	30	78

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