What is John Acker's specialty?

John Acker (NPI 1497756241) is a Medicare-billing provider whose primary specialty is Cardiology in Knoxville, TN.

Where does John Acker practice?

John Acker practices in Knoxville, TN, based on the location reported in the CMS Medicare provider datasets for NPI 1497756241.

How much does Medicare pay John Acker?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for John Acker (NPI 1497756241) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1497756241

John Acker

CardiologyKnoxville, TNI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

1,427

Beneficiaries

—

Total drug cost

$318K

Distinct drugs

Brand share

27.9%

Top prescribed drugs

Apixaban146 claims

Metoprolol Succinate137 claims

Rivaroxaban98 claims

Rosuvastatin Calcium89 claims

Atorvastatin Calcium74 claims

QUALITY · MIPS · 2024

Final MIPS score

96.5

Quality

86.2

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.90%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where John Acker'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). 50 inbound referrers · 77 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jeffrey Peeke Diagnostic Radiology · Knoxville, TN	75	193
Steven Knight Diagnostic Radiology · Knoxville, TN	70	111
Yitong Fu Diagnostic Radiology · Knoxville, TN	59	125
Rural/Metro Of Tennessee, L.P. Ambulance Service Provider · Knoxville, TN	57	309
Geoffrey Laing Diagnostic Radiology · Knoxville, TN	50	97
Jeffrey Johnson Cardiology · Knoxville, TN	38	68
METRO KNOXVILLE HMA LLC	36	66
Tjuan Overly Interventional Cardiology · Knoxville, TN	35	73
Paul Campbell Diagnostic Radiology · Knoxville, TN	34	46
John Snidow Diagnostic Radiology · Knoxville, TN	30	51
Stuart Bresee Interventional Cardiology · Knoxville, TN	29	62
Michael Mcnally Vascular Surgery · Knoxville, TN	26	54

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
UNIVERSITY HEALTH SYSTEM, INC.	318	874
Laboratory Corporation Of America Clinical Laboratory · Knoxville, TN	121	315
Jeffrey Peeke Diagnostic Radiology · Knoxville, TN	63	142
Steven Knight Diagnostic Radiology · Knoxville, TN	56	99
Rural/Metro Of Tennessee, L.P. Ambulance Service Provider · Knoxville, TN	53	189
Joseph Liu Cardiology · Knoxville, TN	49	117
Dana Fathy Diagnostic Radiology · Knoxville, TN	45	78
Gayathri Baljepally Cardiology · Knoxville, TN	45	135
Raj Baljepally Interventional Cardiology · Knoxville, TN	44	79
Daniel Fox Diagnostic Radiology · Knoxville, TN	41	79
Peter Petruzzi Diagnostic Radiology · Knoxville, TN	39	74
David Huntsinger Cardiology · Knoxville, TN	39	82

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