MARK T CLAUS (M.D.) – Allergy Physician, NPI 1518910686

MARK T CLAUS (M.D.) is a healthcare provider. based in Brockton, Massachusetts. specializing in ALLERGY/IMMUNOLOGY. They hold the professional credentials M.D.. They hold a License No. 59634 (MA). The NPI Number for MARK T CLAUS (M.D.) is 1518910686

Main info

Male
44 Years Of Experience
Accepts Medicare Assignment
Name
MARK T CLAUS (M.D.)
NPI
1518910686
Phone
(508) 584-6300
Address
35 PEARL ST
Enumeration Date
18 May 2006
Last Update Date
4 February 2008

Doctor Profile

Medical School Name
BOSTON UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
5086348700
Graduation Year
1982 (44 years ago)
PAC ID
3476562380
Group Practice PAC ID
7012950801
Professional Enrollment ID
I20060420000160
Address ID
MA017573015MI115XXSTXX300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

201 ALLERGY/IMMUNOLOGY in MA

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Provider Addresses for MARK T CLAUS (M.D.)

  • 35, Pearl Street, Brockton Heights, Brockton, Plymouth County, Massachusetts, 03201, United States

    SUITE 300

    BROCKTON, MA 023012866

    Phone: (508) 584-6300

    Fax: (508) 580-4664

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 181 Open Payments records for all available years, with a total value of $4,398.

Total Amount is formed as General ($4,398) + Research ($0) + Ownership ($0) = $4,398.

Last reported payment date: 2024-12-20 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($2,013).

Total Amount

$4,398

General + Research + Ownership

Payments

181

Total payment records

General Amount

$4,398

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-20

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-04-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20060420000160IAllergy/ImmunologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
95004Test for allergy using allergenic extract1,82840$0
95024Test for allergy using allergenic extract injected into skin74625$0
95165Professional service for preparation and provision of 1 or more antigens675127$0
95117Professional service for multiple injections of allergen604130$0
99214Established patient office or other outpatient visit, 30-39 minutes277198$0
View full utilization report →

Insurance plans in this area (ZIP 02301)

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Provider's Procedures

MARK T CLAUS (M.D.) performs procedures in ALLERGY/IMMUNOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYMA95004Injection of allergenic extracts into skin, accessed through the skin197840
ALLERGY/IMMUNOLOGYMA95117Injection of incremental dosages of allergen, 2 or more injections672121

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 7012950801View full group profile
NameSpecialtyState
Nurse PractitionerMA
Allergy/Immunology, Pediatric MedicineNJ
Physician AssistantMA
A L L E R G Y/ I M M U N O L O G YMA
Nurse PractitionerMA
Nurse PractitionerMA
Nurse PractitionerMA
A L L E R G Y/ I M M U N O L O G YMA

Reviews

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Frequently asked questions

How do payers reference MARK T CLAUS (M.D.)?
For MARK T CLAUS (M.D.), use NPI 1518910686 as the unique 10-digit identifier.
Is MARK T CLAUS (M.D.) still an active registrant?
MARK T CLAUS (M.D.) carries an active NPI according to the public dataset.
What kind of doctor is MARK T CLAUS (M.D.)?
MARK T CLAUS (M.D.) is associated with Allergy Physician in the directory — Clinical services aligned with this taxonomy classification.
Where in Massachusetts is MARK T CLAUS (M.D.) registered?
Use Brockton, Massachusetts as the headline location for MARK T CLAUS (M.D.) here.
Does MARK T CLAUS (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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