Dr. Robert S. Mathieu, MD
- Medicare services, 2022
- 249
- Part D claims, 2024
- 23
- Hospital affiliations
- 1
- Industry payments
- $6,637
- State license
- 1
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mathieu's 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. Robert S. Mathieu is an internist in Boston, Massachusetts
Dr. Mathieu practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Mathieu's NPI, 1659377315, was assigned on June 27, 2005. Dr. Mathieu graduated from Tufts University School of Medicine in 1984. Dr. Mathieu holds Rhode Island license MD08436.
- NPI
- 1659377315NPI Registry (opens in a new tab)
- NPI enumeration date
- June 27, 2005
- NPI status
- Active
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert S. Mathieu practices at Tufts Medical Center in Boston, Massachusetts
Dr. Mathieu's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Robert S. Mathieu is affiliated with 2 sites of care
Dr. Mathieu's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Mathieu to 1 imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert S. Mathieu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mathieu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Tufts Medicine and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert S. Mathieu is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Mathieu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mathieu is licensed in Rhode Island.
Specialties and state licenses
- Internal medicine, Rhode IslandPrimary
Internists near Dr. Mathieu
Counts of internists 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. Robert S. Mathieu billed Medicare for 249 services in 2022
CMS data shows 249 Medicare services from Dr. Mathieu across 6 procedure codes in 2022. Medicare paid $7,332 for them. Every service was in an office.
Dr. Mathieu's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 5002022: 13773%
- Other services
- 2021: 3252022: 8374%
- Lab and pathology
- 2021: 822022: 2965%
Dr. Mathieu compared with the Massachusetts median for internists, 2022
- Dr. Mathieu
- Massachusetts median
- Medicare services
- 249vs 43142% below
- Part D claims
- 62vs 40285% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Mathieu's most billed Medicare procedure codes, 2022
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. Mathieu and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert S. Mathieu's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Mathieu's median patient age at 69, with 27% women.
Dr. Mathieu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women27%
- Men73%
Source: Dmand AI Patient Panel Data
Dr. Robert S. Mathieu wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Mathieu wrote 23 Medicare Part D claims. 78% of them were for generic drugs. They cover 5 drugs, with $1,052 in total drug cost. In 2022, CMS named 4,041 claims across 78 drugs.
Dr. Mathieu's Part D claims by kind of drug, 2024
- Generic18 claims78%
- Brand-name and other5 claims22%
Dr. Mathieu's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 4,0412023: 6298%
Drugs named by CMS: 5 in 2023, 78 in 2022.
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
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Dr. Robert S. Mathieu received $6,637 in industry payments from 2016 to 2022
CMS Open Payments shows 382 general payments to Dr. Mathieu from 31 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,302.
General payments to Dr. Mathieu by program year, 2016 to 2022
General payments to Dr. Mathieu by kind, 2016 to 2022
- Food and beverage$6,53899%
- Education$991%
Companies that paid Dr. Mathieu the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert S. Mathieu graduated from Tufts University School of Medicine
Dr. Mathieu graduated from Tufts University School of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert S. Mathieu'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 Data |
| 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) |
| 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. Robert S. Mathieu
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. Robert S. Mathieu's NPI number?
Dr. Robert S. Mathieu's NPI number is 1659377315. It was assigned on June 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Mathieu?
Dr. Robert S. Mathieu is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert S. Mathieu practice?
Dr. Mathieu practices at 800 Washington Street, Boston, MA 02111. Dr. Mathieu's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Mathieu to 1 imaging center.
What is Dr. Robert S. Mathieu's office phone number?
The practice phone on file for Dr. Mathieu is (617) 636-5000.
What is Dr. Robert S. Mathieu's medical license number?
Dr. Mathieu holds Rhode Island license MD08436.
Which hospitals is Dr. Robert S. Mathieu affiliated with?
Dr. Mathieu practices at Tufts Medical Center in Boston, Massachusetts.
Does Dr. Robert S. Mathieu accept Medicare?
Yes. CMS data shows Dr. Mathieu billed Medicare for 249 services in 2022.
What services does Dr. Robert S. Mathieu bill to Medicare?
In 2022, Dr. Mathieu's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0442).
Where did Dr. Robert S. Mathieu go to medical school?
Dr. Mathieu graduated from Tufts University School of Medicine in 1984.
What drugs does Dr. Robert S. Mathieu prescribe most?
In 2023 Medicare Part D data, Dr. Mathieu's most prescribed drugs by claims were Atorvastatin Calcium, Amiodarone HCl and Amlodipine Besylate.
Has Dr. Robert S. Mathieu received payments from drug or device companies?
CMS Open Payments shows $6,637 in general payments to Dr. Mathieu from 31 companies from 2016 to 2022. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Robert S. Mathieu been practicing?
Dr. Mathieu graduated from medical school in 1984, 42 years ago.
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