Dr. Mark T. Claus, MD
- Medicare services, 2024
- 13,217
- Medicare patients, 2024
- 398
- Part D claims, 2024
- 3,149
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 35 Pearl St, Brockton, MA 02301
- Practice phone
- Call (508) 584-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asthma & Allergy Physicians
Brockton, Massachusetts
Find Dr. Claus' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark T. Claus is an allergy physician in Brockton, Massachusetts
Dr. Claus practices at Asthma & Allergy Physicians in Brockton, Massachusetts.
Dr. Claus' NPI, 1518910686, was assigned on May 18, 2006. Dr. Claus graduated from Boston University School of Medicine in 1982. Dr. Claus holds Massachusetts license 59634.
- NPI
- 1518910686NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476562380
- NPI enumeration date
- May 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 584-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark T. Claus practices at Asthma & Allergy Physicians in Brockton, Massachusetts
Dr. Claus' primary practice is Asthma & Allergy Physicians, at 35 Pearl St, Brockton, MA 02301 in Plymouth County. The practice phone is (508) 584-6300.
- Asthma & Allergy Physicians35 Pearl St, Brockton, MA 02301 · Plymouth CountyPhone(508) 584-6300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark T. Claus is affiliated with 3 sites of care and 1 medical group
Dr. Claus' primary practice is Asthma & Allergy Physicians in Brockton, Massachusetts. Dr. Claus is also affiliated with UMass Memorial Health - Milford Regional Medical Center. The medical group on file is Asthma & Allergy Physicians. Dmand AI also links Dr. Claus to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark T. Claus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Claus practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asthma & Allergy Physicians | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark T. Claus is one of 25 allergy physicians in Massachusetts
Allergy is Dr. Claus' primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Claus is licensed in Massachusetts.
Specialties and state licenses
- Allergy, MassachusettsPrimary
Allergy physicians near Dr. Claus
Counts of allergy physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark T. Claus billed Medicare for 13,217 services in 2024
CMS data shows 13,217 Medicare services from Dr. Claus across 15 procedure codes in 2024, for 398 Medicare patients. Medicare paid $263,331 for them. Every service was in an office.
Dr. Claus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 4,3992024: 6,45447%
- Drugs given in the office
- 2023: 02024: 6,270
- Office and hospital visits
- 2023: 5122024: 4934%
- Lab and pathology
- 2023: 182024: 0100%
Dr. Claus compared with the Massachusetts median for allergy physicians, 2024
- Dr. Claus
- Massachusetts median
- Medicare services
- 13,217vs 79616.6 times
- Medicare patients
- 398vs 1402.8 times
- Part D claims
- 2,971vs 14919.9 times
Medians across 28 allergy physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Claus' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Claus and other allergy physicians in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark T. Claus treated 398 Medicare patients in 2024, average age 69
CMS counts 398 Medicare patients who saw Dr. Claus in 2024. The largest group is 65 to 74, with 179 patients. 74% of them have high cholesterol, and 65% have high blood pressure. 33% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Claus' median patient age at 42, with 61% women.
Dr. Claus' Medicare patients by age, 2024
Dr. Claus' Medicare patients by sex, 2024
- Women28070%
- Men11830%
Chronic conditions among Dr. Claus' Medicare patients, 2024
- High cholesterol74%
- High blood pressure65%
- Asthma61%
- Arthritis45%
- Anxiety39%
- Mood disorders36%
- Depression31%
- Diabetes29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Claus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark T. Claus wrote 3,149 Medicare Part D claims in 2024
In 2024, Dr. Claus wrote 3,149 Medicare Part D claims for 449 patients. 63% of them were for generic drugs. CMS names the drug for 2,971 of them, across 36 drugs with 11 or more claims each, at $998,150 in total drug cost. In 2023, CMS named 2,924 claims across 40 drugs.
Dr. Claus' Part D claims by kind of drug, 2024
- Generic1,994 claims63%
- Brand-name1,155 claims37%
Dr. Claus' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Claus' Part D claims, 2024
- Antibiotics2%52 of 3,149 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9242024: 2,9712%
Drugs named by CMS: 36 in 2024, 40 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mark T. Claus scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Claus for performance year 2024, reported as part of a group. Dr. Claus accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Claus as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark T. Claus received $15,114 in industry payments from 2016 to 2025
CMS Open Payments shows 752 general payments to Dr. Claus from 43 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $4,838.
General payments to Dr. Claus by program year, 2016 to 2025
General payments to Dr. Claus by kind, 2016 to 2025
- Food and beverage$14,95799%
- Education$1561%
Companies that paid Dr. Claus the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark T. Claus graduated from Boston University School of Medicine
Dr. Claus graduated from Boston University School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark T. Claus's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark T. Claus
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark T. Claus' NPI number?
Dr. Mark T. Claus' NPI number is 1518910686. It was assigned on May 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark T. Claus?
Dr. Mark T. Claus is an allergy physician in Brockton, Massachusetts. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).
Where does Dr. Mark T. Claus practice?
Dr. Claus practices at 35 Pearl St, Brockton, MA 02301. Dr. Claus' primary practice is Asthma & Allergy Physicians in Brockton, Massachusetts. Dmand AI also links Dr. Claus to 1 group practice or clinic.
What is Dr. Mark T. Claus' office phone number?
The practice phone on file for Dr. Claus is (508) 584-6300.
What is Dr. Mark T. Claus' medical license number?
Dr. Claus holds Massachusetts license 59634.
Which hospitals is Dr. Mark T. Claus affiliated with?
Dr. Claus is affiliated with UMass Memorial Health - Milford Regional Medical Center.
What medical group is Dr. Mark T. Claus part of?
Dr. Claus is linked to Asthma & Allergy Physicians.
Does Dr. Mark T. Claus accept Medicare?
Yes. CMS data shows Dr. Claus billed Medicare for 13,217 services in 2024, and Dr. Claus accepts Medicare assignment.
Does Dr. Mark T. Claus offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Claus as offering telehealth services.
What is Dr. Mark T. Claus' MIPS score?
Dr. Claus' MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Mark T. Claus see?
CMS counts 398 Medicare patients who saw Dr. Claus in 2024, with an average age of 69.
What services does Dr. Mark T. Claus bill to Medicare?
In 2024, Dr. Claus' most billed Medicare services were injected or infused drug (J2357), allergy test or treatment (95004) and allergy test or treatment (95024).
Where did Dr. Mark T. Claus go to medical school?
Dr. Claus graduated from Boston University School of Medicine in 1982.
What drugs does Dr. Mark T. Claus prescribe most?
In 2024 Medicare Part D data, Dr. Claus' most prescribed drugs by claims were Montelukast Sodium, Fluticasone Propionate and Albuterol Sulfate Hfa.
Has Dr. Mark T. Claus received payments from drug or device companies?
CMS Open Payments shows $15,114 in general payments to Dr. Claus from 43 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mark T. Claus been practicing?
Dr. Claus graduated from medical school in 1982, 44 years ago.
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