PROVIDER PROFILE · NPI 1912188897

John HemphillMD

PRACTICEMEMORIAL HEART INSTITUTE, LLCSee all providers at this practice →

Interventional CardiologyChattanooga, TNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,495

Unique beneficiaries

—

Total services

2,090

Distinct HCPCS

Medicare payment

$119K

Peer benchmark

Total Medicare services vs. 134 Interventional Cardiology providers in TN — above median (cohort median 1,964).

PRESCRIBING · PART D · 2024

Total Rx claims

7,545

Beneficiaries

—

Total drug cost

$1.4M

Distinct drugs

Brand share

24.3%

Top prescribed drugs

Carvedilol780 claims

Apixaban645 claims

Amlodipine Besylate528 claims

Rosuvastatin Calcium525 claims

Atorvastatin Calcium511 claims

QUALITY · MIPS · 2024

Final MIPS score

94.3

Quality

92.6

Cost

0.0

Improvement activities

40.0

Promoting interop.

93.2

Payment adjustment

0.81%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$8K

Payment records

By payment type

Consulting Fee$8K

Food and Beverage$462

REFERRAL NETWORK

Where John Hemphill'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). 43 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Carol Gruver Cardiology · Cape Coral, FL	76	142
LABORATORY CORPORATION OF AMERICA HOLDINGS	65	159
Dharmendrakumar Patel Cardiology · Chattanooga, TN	57	103
Steven Quarfordt Interventional Radiology · Chattanooga, TN	57	109
Brian Cooper Clinical Cardiac Electrophysiology · Fort Wayne, IN	55	122
Laboratory Corporation Of America Holdings Clinical Laboratory · Birmingham, AL	53	89
Robert Huang Interventional Cardiology · Chattanooga, TN	49	92
Noel Bergquist Diagnostic Radiology · Knoxville, TN	48	86
Jeffrey Alvis Diagnostic Radiology · Bristol, TN	46	82
Jose Barriocanal Diagnostic Radiology · Chattanooga, TN	43	76
County Of Hamilton Ambulance Service Provider · Chattanooga, TN	43	62
Justin Calvert Interventional Radiology · Mobile, AL	43	62

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