Dr. Rosemarie C. Nassiff, DO
- Medicare services, 2024
- 371
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 198
- Hospital affiliations
- 2
- Industry payments
- $478
- Practice address
- 750 Brunswick Ave, Trenton, NJ 08638
- Practice phone
- Call (609) 394-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nassiff's professional email, personal email and mobile number
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Dr. Rosemarie C. Nassiff is an internist in Trenton, New Jersey
Dr. Nassiff practices at Capital Health Regional Medical Center in Trenton, New Jersey, part of Capital Health System.
Dr. Nassiff's NPI, 1881128932, was assigned on April 15, 2017. Dr. Nassiff graduated from Touro Un Col of Osteopathic Medicine, New York in 2015. Dr. Nassiff holds New Jersey license 25MB10354800.
- NPI
- 1881128932NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032464599
- NPI enumeration date
- April 15, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (609) 394-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rosemarie C. Nassiff practices at Capital Health Regional Medical Center in Trenton, New Jersey
Dr. Nassiff's primary practice is Capital Health Regional Medical Center, at 750 Brunswick Ave, Trenton, NJ 08638 in Mercer County. The practice phone is (609) 394-6000.
- Capital Health Regional Medical Center750 Brunswick Ave, Trenton, NJ 08638 · Mercer CountyPhone(609) 394-6000
Source: Dmand AI Affiliation Data
Dr. Rosemarie C. Nassiff is affiliated with 2 sites of care and 2 medical groups
Dr. Nassiff's primary practice is Capital Health Regional Medical Center in Trenton, New Jersey, part of Capital Health System. Dr. Nassiff is also affiliated with Capital Health Medical Center - Hopewell. The medical group on file is Capital Health Medical Group. Dmand AI also links Dr. Nassiff to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rosemarie C. Nassiff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassiff practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Capital Health Regional Medical Center | Available with a free account |
| +1 more site and 1 medical group | 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 Capital Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Rosemarie C. Nassiff is one of 4,226 internists in New Jersey
Internal medicine is Dr. Nassiff's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nassiff is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Nassiff
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. Rosemarie C. Nassiff billed Medicare for 371 services in 2024
CMS data shows 371 Medicare services from Dr. Nassiff across 4 procedure codes in 2024, for 133 Medicare patients. Medicare paid $28,191 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nassiff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6712024: 37145%
Dr. Nassiff compared with the New Jersey median for internists, 2024
- Dr. Nassiff
- New Jersey median
- Medicare services
- 371vs 72349% below
- Medicare patients
- 133vs 23142% below
- Part D claims
- 27vs 83097% below
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Nassiff'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. Nassiff and other internists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rosemarie C. Nassiff treated 133 Medicare patients in 2024, average age 77
CMS counts 133 Medicare patients who saw Dr. Nassiff in 2024. The largest group is 75 to 84, with 45 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.91, 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. Nassiff's median patient age at 63, with 52% women.
Dr. Nassiff's Medicare patients by age, 2024
Dr. Nassiff's Medicare patients by sex, 2024
- Women7456%
- Men5944%
Chronic conditions among Dr. Nassiff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease61%
- Heart failure53%
- Anxiety51%
- Chronic kidney disease51%
- Arthritis50%
- Atrial fibrillation49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nassiff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rosemarie C. Nassiff wrote 198 Medicare Part D claims in 2024
In 2024, Dr. Nassiff wrote 198 Medicare Part D claims for 79 patients. 75% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $8,223 in total drug cost. In 2023, CMS named 56 claims across 4 drugs.
Dr. Nassiff's Part D claims by kind of drug, 2024
- Generic148 claims75%
- Brand-name and other50 claims25%
Dr. Nassiff'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. Nassiff's Part D claims, 2024
- Antibiotics8%16 of 198 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: 562024: 2752%
Drugs named by CMS: 2 in 2024, 4 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. Rosemarie C. Nassiff takes part in Medicare
Dr. Nassiff 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. Rosemarie C. Nassiff received $478 in industry payments from 2019 to 2024
CMS Open Payments shows 16 general payments to Dr. Nassiff from 1 drug or device company from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $478.
General payments to Dr. Nassiff by program year, 2019 to 2024
Companies that paid Dr. Nassiff the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rosemarie C. Nassiff graduated from Touro Un Col of Osteopathic Medicine, New York
Dr. Nassiff graduated from Touro Un Col of Osteopathic Medicine, New York in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rosemarie C. Nassiff'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) |
| 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. Rosemarie C. Nassiff
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. Rosemarie C. Nassiff's NPI number?
Dr. Rosemarie C. Nassiff's NPI number is 1881128932. It was assigned on April 15, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Rosemarie C. Nassiff?
Dr. Rosemarie C. Nassiff is an internist in Trenton, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rosemarie C. Nassiff practice?
Dr. Nassiff practices at 750 Brunswick Ave, Trenton, NJ 08638. Dr. Nassiff's primary practice is Capital Health Regional Medical Center in Trenton, New Jersey, part of Capital Health System. Dmand AI also links Dr. Nassiff to 1 medical group.
What is Dr. Rosemarie C. Nassiff's office phone number?
The practice phone on file for Dr. Nassiff is (609) 394-6000.
What is Dr. Rosemarie C. Nassiff's medical license number?
Dr. Nassiff holds New Jersey license 25MB10354800.
Which hospitals is Dr. Rosemarie C. Nassiff affiliated with?
Dr. Nassiff practices at Capital Health Regional Medical Center in Trenton, New Jersey. Dr. Nassiff is also affiliated with Capital Health Medical Center - Hopewell.
What medical group is Dr. Rosemarie C. Nassiff part of?
Dr. Nassiff is linked to Capital Health Medical Group. Dmand AI links Dr. Nassiff to 1 more medical group.
Does Dr. Rosemarie C. Nassiff accept Medicare?
Yes. CMS data shows Dr. Nassiff billed Medicare for 371 services in 2024, and Dr. Nassiff accepts Medicare assignment.
How many Medicare patients does Dr. Rosemarie C. Nassiff see?
CMS counts 133 Medicare patients who saw Dr. Nassiff in 2024, with an average age of 77.
What services does Dr. Rosemarie C. Nassiff bill to Medicare?
In 2024, Dr. Nassiff's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
Show 4 more questionsShow fewer questions
Where did Dr. Rosemarie C. Nassiff go to medical school?
Dr. Nassiff graduated from Touro Un Col of Osteopathic Medicine, New York in 2015.
What drugs does Dr. Rosemarie C. Nassiff prescribe most?
In 2024 Medicare Part D data, Dr. Nassiff's most prescribed drugs by claims were Eliquis and Pantoprazole Sodium.
Has Dr. Rosemarie C. Nassiff received payments from drug or device companies?
CMS Open Payments shows $478 in general payments to Dr. Nassiff from 1 company from 2019 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Rosemarie C. Nassiff been practicing?
Dr. Nassiff graduated from medical school in 2015, 11 years ago.
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