What is John Heifner's specialty?

John Heifner (NPI 1588666895) is a Medicare-billing provider whose primary specialty is Nephrology in Little Rock, AR.

Where does John Heifner practice?

John Heifner practices in Little Rock, AR, based on the location reported in the CMS Medicare provider datasets for NPI 1588666895.

How much does Medicare pay John Heifner?

John Heifner (NPI 1588666895) received approximately $190K in total Medicare Part B payments, serving 511 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1588666895

John HeifnerM.D.

PRACTICERENAL CONSULTANTSSee all providers at this practice →

NephrologyLittle Rock, ARI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,018

Unique beneficiaries

—

Total services

1,918

Distinct HCPCS

Medicare payment

$185K

Peer benchmark

Total Medicare services vs. 60 Nephrology providers in AR — above median (cohort median 1,585).

PRESCRIBING · PART D · 2024

Total Rx claims

2,044

Beneficiaries

—

Total drug cost

$469K

Distinct drugs

Brand share

16.3%

Top prescribed drugs

Hydralazine Hcl188 claims

Sevelamer Carbonate176 claims

Losartan Potassium139 claims

Sucroferric Oxyhydroxide134 claims

Furosemide127 claims

QUALITY · MIPS · 2024

Final MIPS score

83.8

Quality

64.0

Cost

77.4

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.37%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$211

Payment records

By payment type

Food and Beverage$205

Education$6

Top paying entities

Food and Beverage$205

Education$6

REFERRAL NETWORK

Where John Heifner'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). 89 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BAPTIST HEALTH	301	1,176
Shane Kimball Nephrology · Little Rock, AR	114	477
Kevin Forte Diagnostic Radiology · Little Rock, AR	96	223
Prajwal Chevireddy Nephrology · Little Rock, AR	93	287
Laboratory Corporation Of America Clinical Laboratory · Dallas, TX	88	234
MEDICAL LABORATORIES OF ARKANSAS, INC.	85	449
Martin Robinson Diagnostic Radiology · Little Rock, AR	83	175
Carl Johnson Internal Medicine · Little Rock, AR	80	543
Spectra East, Inc. Clinical Laboratory · Rockleigh, NJ	76	776
John Baden Diagnostic Radiology · Little Rock, AR	73	172
Matthew Mccrary Diagnostic Radiology · Little Rock, AR	73	168
Todd Smith Diagnostic Radiology · Little Rock, AR	71	185

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