What is Mark Johns's specialty?

Mark Johns (NPI 1558350579) is a Medicare-billing provider whose primary specialty is Cardiology in Midlothian, VA.

Where does Mark Johns practice?

Mark Johns practices in Midlothian, VA, based on the location reported in the CMS Medicare provider datasets for NPI 1558350579.

How much does Medicare pay Mark Johns?

Mark Johns (NPI 1558350579) received approximately $616K in total Medicare Part B payments, serving 2,291 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1558350579

Mark JohnsMD

CardiologyMidlothian, VAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

7,410

Unique beneficiaries

—

Total services

11,996

Distinct HCPCS

Medicare payment

$611K

Peer benchmark

Total Medicare services vs. 448 Cardiology providers in VA — top quintile (cohort median 2,874).

PRESCRIBING · PART D · 2024

Total Rx claims

14,072

Beneficiaries

—

Total drug cost

$2.5M

Distinct drugs

Brand share

23.3%

Top prescribed drugs

Losartan Potassium1,479 claims

Amlodipine Besylate1,297 claims

Apixaban1,115 claims

Carvedilol940 claims

Metoprolol Succinate806 claims

QUALITY · MIPS · 2024

Final MIPS score

75.7

Quality

66.4

Cost

63.9

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.03%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$287

Payment records

By payment type

Food and Beverage$287

Top paying entities

Food and Beverage$287

REFERRAL NETWORK

Where Mark Johns'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). 182 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Edson De Guzman Cardiology · Midlothian, VA	495	2,288
County Of Chesterfield Virginia Ambulance Service Provider · Chesterfield, VA	213	794
BON SECOURS ST FRANCIS MEDICAL CENTER LLC	156	448
James Moore Diagnostic Radiology · Richmond, VA	153	612
Gerry Reece Diagnostic Radiology · Richmond, VA	127	510
Jiyearn Chung Diagnostic Radiology · Richmond, VA	124	427
David May Diagnostic Radiology · Richmond, VA	119	461
FIDLER, ROBERT	115	394
Laboratory Corporation Of America Holdings Clinical Laboratory · Richmond, VA	86	210
Babar Hussain Internal Medicine · Fredericksburg, VA	86	380
Richard Fuller Diagnostic Radiology · Richmond, VA	77	290
Fred Laine Diagnostic Radiology · Richmond, VA	66	156

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