Dr. Marissa Nadeau, MD
- Medicare services, 2024
- 139
- Medicare patients, 2024
- 142
- Part D claims, 2024
- 55
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 622 W 168th St, New York, NY 10032
- Practice phone
- Call (212) 297-4255
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Columbia University Irving Medical Center
New York, New York
Find Dr. Nadeau'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. Marissa Nadeau is an emergency medicine physician in New York, New York
Dr. Nadeau practices at Columbia University Irving Medical Center in New York, New York.
Dr. Nadeau's NPI, 1144647447, was assigned on March 25, 2014. Dr. Nadeau graduated from Rutgers Robert Wood Johnson Medical School in 2014. Dr. Nadeau holds New York license 289278.
- NPI
- 1144647447NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234404013
- NPI enumeration date
- March 25, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 297-4255
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marissa Nadeau practices at Columbia University Irving Medical Center in New York, New York
Dr. Nadeau's primary practice is Columbia University Irving Medical Center, at 622 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 297-4255.
- Columbia University Irving Medical Center622 W 168th St, New York, NY 10032 · New York CountyPhone(212) 297-4255
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marissa Nadeau is affiliated with 2 sites of care and 1 medical group
Dr. Nadeau's primary practice is Columbia University Irving Medical Center in New York, New York. Dr. Nadeau is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is ColumbiaDoctors.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marissa Nadeau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nadeau practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Columbia University Irving 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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Dr. Marissa Nadeau is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Nadeau's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Nadeau is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Nadeau
Counts of emergency medicine 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. Marissa Nadeau billed Medicare for 139 services in 2024
CMS data shows 139 Medicare services from Dr. Nadeau across 3 procedure codes in 2024, for 142 Medicare patients. Medicare paid $20,476 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nadeau's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1412024: 1391%
Dr. Nadeau compared with the New York median for emergency medicine physicians, 2024
- Dr. Nadeau
- New York median
- Medicare services
- 139vs 21937% below
- Medicare patients
- 142vs 21634% below
- Part D claims
- 12vs 2959% below
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Nadeau'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nadeau and other emergency medicine physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marissa Nadeau treated 142 Medicare patients in 2024, average age 73
CMS counts 142 Medicare patients who saw Dr. Nadeau in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 58% are also on Medicaid. Their average risk score is 2.59, 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. Nadeau's median patient age at 60, with 58% women.
Dr. Nadeau's Medicare patients by age, 2024
Dr. Nadeau's Medicare patients by sex, 2024
- Women7654%
- Men6646%
Chronic conditions among Dr. Nadeau's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis60%
- Diabetes54%
- Mood disorders49%
- Ischemic heart disease47%
- Chronic kidney disease46%
- Depression42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nadeau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marissa Nadeau wrote 55 Medicare Part D claims in 2024
In 2024, Dr. Nadeau wrote 55 Medicare Part D claims for 39 patients. 98% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $65 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Nadeau's Part D claims by kind of drug, 2024
- Generic54 claims98%
- Brand-name and other1 claims2%
Dr. Nadeau'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.
Drug classes CMS tracks in Dr. Nadeau's Part D claims, 2024
- Antibiotics33%18 of 55 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 128%
Drugs named by CMS: 1 in 2023, 1 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
Dr. Marissa Nadeau 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. Nadeau for performance year 2024, reported through an alternative payment model (APM). Dr. Nadeau accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nadeau's MIPS scores, performance year 2024
- 100of 100Final score
- 85.3of 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
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Dr. Marissa Nadeau received $622 in industry payments from 2017 to 2022
CMS Open Payments shows 5 general payments to Dr. Nadeau from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $352.
General payments to Dr. Nadeau by program year, 2017 to 2022
Companies that paid Dr. Nadeau the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marissa Nadeau graduated from Rutgers Robert Wood Johnson Medical School
Dr. Nadeau graduated from Rutgers Robert Wood Johnson Medical School in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marissa Nadeau'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 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) |
| 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. Marissa Nadeau
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. Marissa Nadeau's NPI number?
Dr. Marissa Nadeau's NPI number is 1144647447. It was assigned on March 25, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Marissa Nadeau?
Dr. Marissa Nadeau is an emergency medicine physician in New York, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Marissa Nadeau practice?
Dr. Nadeau practices at 622 W 168th St, New York, NY 10032. Dr. Nadeau's primary practice is Columbia University Irving Medical Center in New York, New York.
What is Dr. Marissa Nadeau's office phone number?
The practice phone on file for Dr. Nadeau is (212) 297-4255.
What is Dr. Marissa Nadeau's medical license number?
Dr. Nadeau holds New York license 289278.
Which hospitals is Dr. Marissa Nadeau affiliated with?
Dr. Nadeau is affiliated with NewYork-Presbyterian/Weill Cornell Medical Center.
What medical group is Dr. Marissa Nadeau part of?
Dr. Nadeau is linked to ColumbiaDoctors.
Does Dr. Marissa Nadeau accept Medicare?
Yes. CMS data shows Dr. Nadeau billed Medicare for 139 services in 2024, and Dr. Nadeau accepts Medicare assignment.
What is Dr. Marissa Nadeau's MIPS score?
Dr. Nadeau'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. Marissa Nadeau see?
CMS counts 142 Medicare patients who saw Dr. Nadeau in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Marissa Nadeau bill to Medicare?
In 2024, Dr. Nadeau's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. Marissa Nadeau go to medical school?
Dr. Nadeau graduated from Rutgers Robert Wood Johnson Medical School in 2014.
What drugs does Dr. Marissa Nadeau prescribe most?
In 2023 Medicare Part D data, Dr. Nadeau's most prescribed drugs by claims were Cephalexin.
Has Dr. Marissa Nadeau received payments from drug or device companies?
CMS Open Payments shows $622 in general payments to Dr. Nadeau from 2 companies from 2017 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Marissa Nadeau been practicing?
Dr. Nadeau graduated from medical school in 2014, 12 years ago.
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