Dr. Patrick Alain Duplan, MD
- Medicare services, 2024
- 729
- Medicare patients, 2024
- 209
- Part D claims, 2024
- 593
- MIPS score, 2024
- 100
- Hospital affiliations
- 2
- Practice address
- 100 South Street, Southbridge, MA 01550
- Practice phone
- Call (508) 765-9771
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Duplan'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. Patrick Alain Duplan is an internist in Southbridge, Massachusetts
Dr. Duplan practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care.
Dr. Duplan's NPI, 1124656285, was assigned on April 1, 2020. Dr. Duplan holds Massachusetts license 1015354.
- NPI
- 1124656285NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133589302
- NPI enumeration date
- April 1, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 765-9771
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick Alain Duplan practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts
Dr. Duplan's primary practice is UMass Memorial Health - Harrington Hospital, at 100 South Street, Southbridge, MA 01550 in Worcester County. The practice phone is (508) 765-9771.
- UMass Memorial Health - Harrington Hospital100 South Street, Southbridge, MA 01550 · Worcester CountyPhone(508) 765-9771
Source: Dmand AI Affiliation Data
Dr. Patrick Alain Duplan is affiliated with 2 sites of care and 1 medical group
Dr. Duplan's primary practice is UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care. Dr. Duplan is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Patrick Alain Duplan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duplan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UMass Memorial Health - Harrington Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across UMass Memorial Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Patrick Alain Duplan is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Duplan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Duplan is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Duplan
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. Patrick Alain Duplan billed Medicare for 729 services in 2024
CMS data shows 729 Medicare services from Dr. Duplan across 5 procedure codes in 2024, for 209 Medicare patients. Medicare paid $55,801 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Duplan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2712024: 729169%
Dr. Duplan compared with the Massachusetts median for internists, 2024
- Dr. Duplan
- Massachusetts median
- Medicare services
- 729vs 43169% above
- Medicare patients
- 209vs 1948% above
- Part D claims
- 331vs 40218% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Duplan's 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.
Need commercial claims for Dr. Duplan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duplan and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick Alain Duplan treated 209 Medicare patients in 2024, average age 74
CMS counts 209 Medicare patients who saw Dr. Duplan in 2024. The largest group is 65 to 74, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Duplan's median patient age at 77, with 50% women.
Dr. Duplan's Medicare patients by age, 2024
Dr. Duplan's Medicare patients by sex, 2024
- Women11957%
- Men9043%
Chronic conditions among Dr. Duplan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety55%
- Arthritis54%
- Mood disorders51%
- Heart failure48%
- Ischemic heart disease48%
- COPD46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duplan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick Alain Duplan wrote 593 Medicare Part D claims in 2024
In 2024, Dr. Duplan wrote 593 Medicare Part D claims for 193 patients. 89% of them were for generic drugs. CMS names the drug for 331 of them, across 16 drugs with 11 or more claims each, at $16,305 in total drug cost. In 2023, CMS named 18 claims across 1 drug.
Dr. Duplan's Part D claims by kind of drug, 2024
- Generic529 claims89%
- Brand-name and other64 claims11%
Dr. Duplan's 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. Duplan's Part D claims, 2024
- Opioids3%20 of 593 claims
- Antibiotics26%154 of 593 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: 182024: 3311739%
Drugs named by CMS: 16 in 2024, 1 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. Patrick Alain Duplan scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Duplan for performance year 2024, reported through an alternative payment model (APM). Dr. Duplan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Duplan's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Patrick Alain Duplan received $32 in industry payments in 2023
CMS Open Payments shows 2 general payments to Dr. Duplan from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $32.
Companies that paid Dr. Duplan the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Patrick Alain Duplan'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 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) |
| 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. Patrick Alain Duplan
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. Patrick Alain Duplan's NPI number?
Dr. Patrick Alain Duplan's NPI number is 1124656285. It was assigned on April 1, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Alain Duplan?
Dr. Patrick Alain Duplan is an internist in Southbridge, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Patrick Alain Duplan practice?
Dr. Duplan practices at 100 South Street, Southbridge, MA 01550. Dr. Duplan's primary practice is UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care.
What is Dr. Patrick Alain Duplan's office phone number?
The practice phone on file for Dr. Duplan is (508) 765-9771.
What is Dr. Patrick Alain Duplan's medical license number?
Dr. Duplan holds Massachusetts license 1015354.
Which hospitals is Dr. Patrick Alain Duplan affiliated with?
Dr. Duplan practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts. Dr. Duplan is also affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Dr. Patrick Alain Duplan part of?
Dr. Duplan is linked to UMass Memorial Medical Group.
Does Dr. Patrick Alain Duplan accept Medicare?
Yes. CMS data shows Dr. Duplan billed Medicare for 729 services in 2024, and Dr. Duplan accepts Medicare assignment.
What is Dr. Patrick Alain Duplan's MIPS score?
Dr. Duplan's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Patrick Alain Duplan see?
CMS counts 209 Medicare patients who saw Dr. Duplan in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Patrick Alain Duplan bill to Medicare?
In 2024, Dr. Duplan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
What drugs does Dr. Patrick Alain Duplan prescribe most?
In 2024 Medicare Part D data, Dr. Duplan's most prescribed drugs by claims were Cefpodoxime Proxetil, Prednisone and Doxycycline Hyclate.
Has Dr. Patrick Alain Duplan received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Dr. Duplan from 1 company from 2023 to 2023. The largest total came from Pfizer Inc.
How long has Dr. Patrick Alain Duplan been practicing?
Dr. Duplan graduated from medical school in 2019, 7 years ago.
Selling to internal medicine practices?
See internists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card