MARK T CLAUS M.D.
NPI 1518910686
Allergy & Immunology - Allergy in Brockton, MA

Q: What is Mark Claus's NPI number?

The NPI number for Mark Claus is 1518910686. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Q: What is Mark Claus's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Q: When was this NPI record last updated?

The NPPES record for Mark Claus was last updated on February 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 18, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

35 PEARL ST, SUITE 300, BROCKTON, MA 02301(508) 584-6300(508) 580-4664 Get Directions Write a Review

NPPES record last updated: February 4, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Mark T Claus M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK T CLAUS M.D. (NPI 1518910686) is an individual allergy provider in Brockton, Massachusetts, licensed in Massachusetts (59634) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Signature Healthcare Brockton Hospital, and is a graduate of Boston University School Of Medicine (1982).

NPPES Registry Identity

NPI1518910686

Entity TypeIndividualMale

Primary Taxonomy207KA0200X

Provider Legal NameMARK T CLAUSCredential: M.D.

Location Address35 PEARL ST, SUITE 300Brockton, MA 02301-2866

Mailing Address35 Pearl St, Suite 300Brockton, MA 02301-2866 · (508) 584-6300 · Fax (508) 580-4664

Phone(508) 584-6300

Fax(508) 580-4664

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 1982

Enumeration DateMay 18, 2006

Last NPPES UpdateFebruary 4, 2008

✔ NPI 1518910686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians

Taxonomy Code207KA0200X

License✔ Licensed in MA · 59634

Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

35 PEARL ST, Brockton, MA 02301

Open in Google Maps ↗

Other Identifiers 3

Medicare PINHX3076MA

Medicaid3036529MA

Medicare UPINB75023MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark T Claus M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476562380

PECOS Enrollment IDI20060420000160

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Claus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Asthma & Allergy Physicians LLC

Same address

Allergy

35 PEARL STREET, SUITE 300
Brockton, MA 02301

Reassigned Medicare billing, Massachusetts enrollment
8 clinicians in this Medicare group

NPI 1376586354 (508) 584-6300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, omalizumab, 5 mg J2357

Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.

6,270 services13 patients

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

2,428 services58 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

1,213 services41 patients

Test for allergy using skin patch 95044

A skin patch test helps identify allergens causing skin reactions. Small patches with potential allergens are applied to your skin, usually on the back. After 48 hours, they are removed to check for reactions. It's a safe and effective way to diagnose allergies.

915 services13 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

613 services127 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

612 services141 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

279 services205 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

264 services34 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

207 services144 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

141 services34 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

128 services104 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

61 services47 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

35 services35 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

30 services26 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Signature Healthcare Brockton Hospital

Acute Care Hospitals · Brockton, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220052

Location680 Center StreetBrockton, MA 02302 · Plymouth County

Emergency services Birthing friendly

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220090

Location14 Prospect StreetMilford, MA 01757 · Worcester County

Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

4 suppliers23 claims42 services$1.31 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

4 suppliers58 claims59 services$3.31 avg. paid by Medicare

Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers18 claims1,340 services$35.41 avg. paid by Medicare

Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg J1599

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier13 claims1,300 services$55.08 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

20 suppliers78 claims13,975 services$0.03 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

21 suppliers76 claims76 services$24.44 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CARRIE J DLUHY AU.D.

Audiologist

35 PEARL ST
BROCKTON, MA 02301

Plymouth County (508) 588-8034

MRS. LINDA ABDELAHAD MED,CCC,SLP

Speech-Language Pathologist

35 PEARL ST, SUITE 200
BROCKTON, MA 02301

Plymouth County (508) 559-7237

MICHAEL LAWRENCE M.D.

Allergy & Immunology (Allergy)

35 PEARL ST, SUITE 300
BROCKTON, MA 02301

Plymouth County (508) 584-6300

DARLENE MADORE CPNP-PC, RN

Nurse Practitioner

35 PEARL ST, SUITE 300
BROCKTON, MA 02301

Plymouth County (508) 584-6300

VICKI WILSON M.S.

Audiologist

35 PEARL ST
BROCKTON, MA 02301

Plymouth County (508) 580-3637

BRIDGET ELIZABETH KOSILLA AUD

Audiologist

35 PEARL ST
BROCKTON, MA 02301

Plymouth County (508) 588-8034

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Claus's NPI number?

The NPI number for Mark Claus is 1518910686. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Mark Claus located?

Mark Claus practices at 35 Pearl St Suite 300, Brockton, MA 02301. The listed phone number is (508) 584-6300.

What is Mark Claus's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Mark Claus enrolled in Medicare?

Yes. Mark Claus is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mark Claus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Claus reassigns Medicare benefits to Asthma & Allergy Physicians LLC (Brockton, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Claus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Claus accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Mark Claus as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Claus affiliated with any hospitals?

According to CMS data, Mark Claus is affiliated with Signature Healthcare Brockton Hospital and Milford Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Claus was last updated on February 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.