Dr. Rene L. Desmarais, MD
- Medicare services, 2024
- 7,414
- Medicare patients, 2024
- 1,957
- Part D claims, 2024
- 5,990
- Hospital affiliations
- 3
- Industry payments
- $3,599
- Practice address
- 400 Eastern Shore Dr, Salisbury, MD 21804
- Practice phone
- Call (410) 546-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tidalhealth Specialty Care
Salisbury, Maryland
Find Dr. Desmarais' 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. Rene L. Desmarais is a cardiologist in Salisbury, Maryland
Dr. Desmarais practices at Tidalhealth Specialty Care in Salisbury, Maryland.
Dr. Desmarais' NPI, 1518942390, was assigned on December 14, 2005. Dr. Desmarais graduated from University of Connecticut School of Medicine in 1987. Dr. Desmarais holds Maryland license D38353.
- NPI
- 1518942390NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103828413
- NPI enumeration date
- December 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 546-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rene L. Desmarais practices at Tidalhealth Specialty Care in Salisbury, Maryland
Dr. Desmarais' primary practice is Tidalhealth Specialty Care, at 400 Eastern Shore Dr, Salisbury, MD 21804 in Wicomico County. The practice phone is (410) 546-6400.
- Tidalhealth Specialty Care400 Eastern Shore Dr, Salisbury, MD 21804 · Wicomico CountyPhone(410) 546-6400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rene L. Desmarais is affiliated with 7 sites of care and 4 medical groups
Dr. Desmarais' primary practice is Tidalhealth Specialty Care in Salisbury, Maryland. Dr. Desmarais is also affiliated with TidalHealth Peninsula Regional. The medical group on file is TidalHealth Cardiovascular Surgery. Dmand AI also links Dr. Desmarais to 2 more hospitals, 3 group practices and clinics and 3 medical groups, each 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. Rene L. Desmarais' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Desmarais practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tidalhealth Specialty Care | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rene L. Desmarais is one of 503 cardiologists in Maryland
Cardiovascular disease is Dr. Desmarais' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Desmarais is licensed in Maryland.
Specialties and state licenses
- Cardiovascular disease, MarylandPrimary
Cardiologists near Dr. Desmarais
Counts of cardiologists 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. Rene L. Desmarais billed Medicare for 7,414 services in 2024
CMS data shows 7,414 Medicare services from Dr. Desmarais across 28 procedure codes in 2024, for 1,957 Medicare patients. Medicare paid $702,981 for them.
Dr. Desmarais' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,3222024: 2,4044%
- Office and hospital visits
- 2023: 2,1232024: 1,90510%
- Drugs given in the office
- 2023: 1,1642024: 1,77352%
- Other services
- 2023: 3162024: 47149%
- Imaging
- 2023: 3232024: 46644%
- Lab and pathology
- 2023: 3582024: 39510%
Where Dr. Desmarais' Medicare services took place, 2024
- In an office6,72491%
- In a facility6909%
Dr. Desmarais compared with the Maryland median for cardiologists, 2024
- Dr. Desmarais
- Maryland median
- Medicare services
- 7,414vs 2,5872.9 times
- Medicare patients
- 1,957vs 1,15270% above
- Part D claims
- 5,674vs 1,1984.7 times
Medians across 496 cardiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Desmarais' 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. Desmarais?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Desmarais and other cardiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rene L. Desmarais treated 1,957 Medicare patients in 2024, average age 76
CMS counts 1,957 Medicare patients who saw Dr. Desmarais in 2024. The largest group is 75 to 84, with 827 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Desmarais' median patient age at 72, with 49% women.
Dr. Desmarais' Medicare patients by age, 2024
Dr. Desmarais' Medicare patients by sex, 2024
- Women97050%
- Men98750%
Chronic conditions among Dr. Desmarais' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease56%
- Arthritis50%
- Diabetes37%
- Atrial fibrillation36%
- Chronic kidney disease36%
- Heart failure34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Desmarais' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rene L. Desmarais wrote 5,990 Medicare Part D claims in 2024
In 2024, Dr. Desmarais wrote 5,990 Medicare Part D claims for 889 patients. 87% of them were for generic drugs. CMS names the drug for 5,674 of them, across 64 drugs with 11 or more claims each, at $861,045 in total drug cost. In 2023, CMS named 5,828 claims across 60 drugs.
Dr. Desmarais' Part D claims by kind of drug, 2024
- Generic5,183 claims87%
- Brand-name807 claims13%
Dr. Desmarais' 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. Desmarais' Part D claims, 2024
- Antibiotics0%17 of 5,990 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: 5,8282024: 5,6743%
Drugs named by CMS: 64 in 2024, 60 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
How Dr. Rene L. Desmarais takes part in Medicare
Dr. Desmarais accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rene L. Desmarais received $3,599 in industry payments from 2016 to 2025
CMS Open Payments shows 206 general payments to Dr. Desmarais from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $856.
General payments to Dr. Desmarais by program year, 2016 to 2025
General payments to Dr. Desmarais by kind, 2016 to 2025
- Food and beverage$3,53298%
- Education$672%
Companies that paid Dr. Desmarais 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. Rene L. Desmarais graduated from University of Connecticut School of Medicine
Dr. Desmarais graduated from University of Connecticut School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rene L. Desmarais'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) |
| 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. Rene L. Desmarais
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. Rene L. Desmarais' NPI number?
Dr. Rene L. Desmarais' NPI number is 1518942390. It was assigned on December 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Rene L. Desmarais?
Dr. Rene L. Desmarais is a cardiologist in Salisbury, Maryland. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Rene L. Desmarais practice?
Dr. Desmarais practices at 400 Eastern Shore Dr, Salisbury, MD 21804. Dr. Desmarais' primary practice is Tidalhealth Specialty Care in Salisbury, Maryland. Dmand AI also links Dr. Desmarais to 2 hospitals, 3 group practices and clinics and 3 medical groups.
What is Dr. Rene L. Desmarais' office phone number?
The practice phone on file for Dr. Desmarais is (410) 546-6400.
What is Dr. Rene L. Desmarais' medical license number?
Dr. Desmarais holds Maryland license D38353.
Which hospitals is Dr. Rene L. Desmarais affiliated with?
Dr. Desmarais is affiliated with TidalHealth Peninsula Regional. Dmand AI links Dr. Desmarais to 2 more hospitals.
What medical group is Dr. Rene L. Desmarais part of?
Dr. Desmarais is linked to TidalHealth Cardiovascular Surgery. Dmand AI links Dr. Desmarais to 3 more medical groups.
Does Dr. Rene L. Desmarais accept Medicare?
Yes. CMS data shows Dr. Desmarais billed Medicare for 7,414 services in 2024, and Dr. Desmarais accepts Medicare assignment.
How many Medicare patients does Dr. Rene L. Desmarais see?
CMS counts 1,957 Medicare patients who saw Dr. Desmarais in 2024, with an average age of 76.
What services does Dr. Rene L. Desmarais bill to Medicare?
In 2024, Dr. Desmarais' most billed Medicare services were injected or infused drug (J2785), office visit, established patient (99214) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. Rene L. Desmarais go to medical school?
Dr. Desmarais graduated from University of Connecticut School of Medicine in 1987.
What drugs does Dr. Rene L. Desmarais prescribe most?
In 2024 Medicare Part D data, Dr. Desmarais' most prescribed drugs by claims were Metoprolol Tartrate, Metoprolol Succinate and Atorvastatin Calcium.
Has Dr. Rene L. Desmarais received payments from drug or device companies?
CMS Open Payments shows $3,599 in general payments to Dr. Desmarais from 22 companies from 2016 to 2025. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Rene L. Desmarais been practicing?
Dr. Desmarais graduated from medical school in 1987, 39 years ago.
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