What is Mark Johnson's specialty?

Mark Johnson (NPI 1558347765) is a Medicare-billing provider whose primary specialty is Pathology in Sioux Falls, SD.

Where does Mark Johnson practice?

Mark Johnson practices in Sioux Falls, SD, based on the location reported in the CMS Medicare provider datasets for NPI 1558347765.

How much does Medicare pay Mark Johnson?

Mark Johnson (NPI 1558347765) received approximately $14K in total Medicare Part B payments, serving 172 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1558347765

Mark JohnsonMD

PRACTICESANFORD CLINICSee all providers at this practice →

PathologySioux Falls, SDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

225

Unique beneficiaries

—

Total services

351

Distinct HCPCS

Medicare payment

$8K

Peer benchmark

Total Medicare services vs. 24 Pathology providers in SD — bottom quintile (cohort median 3,519).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

83.3

Quality

75.9

Cost

68.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.35%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mark Johnson'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). 51 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SANFORD HEALTH NETWORK	167	502
Bryan Barness Diagnostic Radiology · Sioux Falls, SD	55	93
Charles Flohr Diagnostic Radiology · Sioux Falls, SD	51	83
Kevin Ree Family Practice · Sedalia, MO	47	103
Charles Dike Family Practice · Worthington, MN	43	109
Jorge Gilbert Gastroenterology · Sioux Falls, SD	35	69
Adam Stys Interventional Cardiology · Sioux Falls, SD	30	80
Mohammad Qamar Nephrology · Sioux Falls, SD	29	71
John Reinschmidt Diagnostic Radiology · Sioux Falls, SD	28	31
David Bean Diagnostic Radiology · Sioux Falls, SD	25	29
Elie Dib Hematology-Oncology · Ypsilanti, MI	24	92
Dana Brandys Nephrology · Sioux Falls, SD	23	48

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