What is Mark Claus's specialty?

Mark Claus (NPI 1518910686) is a Medicare-billing provider whose primary specialty is Allergy/ Immunology in Brockton, MA.

Where does Mark Claus practice?

Mark Claus practices in Brockton, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1518910686.

How much does Medicare pay Mark Claus?

Mark Claus (NPI 1518910686) received approximately $378K in total Medicare Part B payments, serving 398 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518910686

Mark ClausM.D.

Allergy/ ImmunologyBrockton, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,043

Unique beneficiaries

—

Total services

13,217

Distinct HCPCS

Medicare payment

$263K

Peer benchmark

Total Medicare services vs. 128 Allergy/ Immunology providers in MA — top quintile (cohort median 1,606).

PRESCRIBING · PART D · 2024

Total Rx claims

2,971

Beneficiaries

—

Total drug cost

$998K

Distinct drugs

Brand share

41.5%

Top prescribed drugs

Montelukast Sodium585 claims

Fluticasone Propionate353 claims

Albuterol Sulfate319 claims

Levocetirizine Dihydrochloride278 claims

Azelastine Hcl183 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

124

By payment type

Food and Beverage$3K

Education$115

Top paying entities

Food and Beverage$3K

Education$115

REFERRAL NETWORK

Where Mark Claus'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	50	162
Michael Lawrence Allergy/ Immunology · Brockton, MA	40	133
BROCKTON HOSPITAL, INC.	36	89
MILFORD REGIONAL MEDICAL CENTER INC	33	181
Christopher Massey Physician Assistant · Raynham, MA	23	44

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