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Dr. Ellen A. Ronnen, MD
NPI1003828823PAC ID2466451372
- Medicare services, 2024
- 61,200
- Medicare patients, 2024
- 779
- Part D claims, 2024
- 1,160
- Publications
- 2
- MIPS score, 2024
- 100
- Practice address
- 629 Cranbury Rd, East Brunswick, NJ 08816
- Practice phone
- Call (732) 390-7750
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Astera Cancer Care - East Brunswick
East Brunswick, New Jersey
Find Dr. Ronnen's professional email, personal email and mobile number
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Dr. Ellen A. Ronnen is a hematologist and oncologist in East Brunswick, New Jersey
Dr. Ronnen practices at Astera Cancer Care - East Brunswick in East Brunswick, New Jersey.
Dr. Ronnen's NPI, 1003828823, was assigned on August 12, 2006. Dr. Ronnen graduated from Albert Einstein College of Medicine of Yeshiva University in 1999. Dr. Ronnen holds New Jersey license 25MA08099000.
NPI and contact details
- NPI
- 1003828823NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466451372
- NPI enumeration date
- August 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (732) 390-7750
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellen A. Ronnen practices at Astera Cancer Care - East Brunswick in East Brunswick, New Jersey
Dr. Ronnen's primary practice is Astera Cancer Care - East Brunswick, at 629 Cranbury Rd, East Brunswick, NJ 08816 in Middlesex County. The practice phone is (732) 390-7750.
- Astera Cancer Care - East Brunswick629 Cranbury Rd, East Brunswick, NJ 08816 · Middlesex CountyPhone(732) 390-7750
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ellen A. Ronnen is affiliated with 8 sites of care and 2 medical groups
Dr. Ronnen's primary practice is Astera Cancer Care - East Brunswick in East Brunswick, New Jersey. Dr. Ronnen is also affiliated with Robert Wood Johnson University Hospital. The medical group on file is Astera Cancer Care. Dmand AI also links Dr. Ronnen to 4 more hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Astera Cancer Care - East BrunswickPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ellen A. Ronnen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ronnen practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Astera Cancer Care - East Brunswick | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ellen A. Ronnen is one of 364 hematologists and oncologists in New Jersey
Hematology and oncology is Dr. Ronnen's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Ronnen is licensed in New Jersey.
Specialties and state licenses
- Hematology and oncology, New JerseyPrimary
Hematologists and oncologists near Dr. Ronnen
Counts of hematologists and oncologists 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. Ellen A. Ronnen billed Medicare for 61,200 services in 2024
CMS data shows 61,200 Medicare services from Dr. Ronnen across 34 procedure codes in 2024, for 779 Medicare patients. Medicare paid $628,418 for them.
Medicare services, 202461,200
Medicare patients779
Paid by Medicare$628,418
Procedure codes34
Dr. Ronnen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 59,5212024: 56,1536%
- Office and hospital visits
- 2023: 1,7622024: 1,48716%
- Lab and pathology
- 2023: 1,1182024: 1,43028%
- Tests and treatments
- 2023: 1,3702024: 1,15616%
- Surgery
- 2023: 1,1342024: 81328%
- Other services
- 2023: 122024: 1611242%
Where Dr. Ronnen's Medicare services took place, 2024
- In an office60,76499%
- In a facility4361%
Dr. Ronnen compared with the New Jersey median for hematologists and oncologists, 2024
- Dr. Ronnen
- New Jersey median
- Medicare services
- 61,200vs 1,51540.4 times
- Medicare patients
- 779vs 3372.3 times
- Part D claims
- 923vs 3782.4 times
Medians across 349 hematologists and oncologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Ronnen'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. Ronnen and other hematologists and oncologists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ellen A. Ronnen treated 779 Medicare patients in 2024, average age 76
CMS counts 779 Medicare patients who saw Dr. Ronnen in 2024. The largest group is 75 to 84, with 309 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 2.00, 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. Ronnen's median patient age at 71, with 67% women.
Medicare patients, 2024779
Average age76
Average risk score2.00
Also on Medicaid7%
Dr. Ronnen's Medicare patients by age, 2024
Dr. Ronnen's Medicare patients by sex, 2024
- Women50064%
- Men27936%
Chronic conditions among Dr. Ronnen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Cancer47%
- Diabetes44%
- Ischemic heart disease39%
- Chronic kidney disease34%
- Anxiety33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ronnen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women67%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ellen A. Ronnen wrote 1,160 Medicare Part D claims in 2024
In 2024, Dr. Ronnen wrote 1,160 Medicare Part D claims for 231 patients. 50% of them were for generic drugs. CMS names the drug for 923 of them, across 27 drugs with 11 or more claims each, at $2,568,628 in total drug cost. In 2023, CMS named 946 claims across 25 drugs.
Part D claims, 20241,160
Drugs named by CMS27
Total drug cost$2.6M
Part D patients231
Dr. Ronnen's Part D claims by kind of drug, 2024
- Generic584 claims50%
- Brand-name and other576 claims50%
Dr. Ronnen'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. Ronnen's Part D claims, 2024
- Opioids1%16 of 1,160 claims
- Antibiotics1%16 of 1,160 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: 9462024: 9232%
Drugs named by CMS: 27 in 2024, 25 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. Ellen A. Ronnen 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. Ronnen for performance year 2024, reported as part of a group. Dr. Ronnen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ronnen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Ronnen's MIPS scores, performance year 2024
- 100of 100Final score
- 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. Ellen A. Ronnen has 2 publications on record
Dmand AI links 2 papers to Dr. Ronnen, published from 2019 to 2024. Dr. Ronnen's most frequent co-authors are Melissa Stuart Dillmon, MD, Smith Giri and Issam Makhoul, MD.
Papers2
Years published2019 to 2024
Dr. Ronnen's most frequent co-authors
Recent publications by Dr. Ronnen
J Clin Oncol
Antineoplastic AgentsMedical OncologyPatient-Centered Care
See who Dr. Ronnen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ronnen works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ellen A. Ronnen received $3,709 in industry payments from 2016 to 2025
CMS Open Payments shows 61 general payments to Dr. Ronnen from 28 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 51% of the total. Incyte Corporation paid the most, $1,875.
General payments to Dr. Ronnen by program year, 2016 to 2025
General payments to Dr. Ronnen by kind, 2016 to 2025
$3.7Kin total
- Speaker and faculty fees$1,87551%
- Food and beverage$1,71346%
- Education$1213%
Companies that paid Dr. Ronnen 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. Ellen A. Ronnen graduated from Albert Einstein College of Medicine of Yeshiva University
Dr. Ronnen graduated from Albert Einstein College of Medicine of Yeshiva University in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ellen A. Ronnen'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Ellen A. Ronnen
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. Ellen A. Ronnen's NPI number?
Dr. Ellen A. Ronnen's NPI number is 1003828823. It was assigned on August 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ellen A. Ronnen?
Dr. Ellen A. Ronnen is a hematologist and oncologist in East Brunswick, New Jersey. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Ellen A. Ronnen practice?
Dr. Ronnen practices at 629 Cranbury Rd, East Brunswick, NJ 08816. Dr. Ronnen's primary practice is Astera Cancer Care - East Brunswick in East Brunswick, New Jersey. Dmand AI also links Dr. Ronnen to 4 hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Dr. Ellen A. Ronnen's office phone number?
The practice phone on file for Dr. Ronnen is (732) 390-7750.
What is Dr. Ellen A. Ronnen's medical license number?
Dr. Ronnen holds New Jersey license 25MA08099000.
Which hospitals is Dr. Ellen A. Ronnen affiliated with?
Dr. Ronnen is affiliated with Robert Wood Johnson University Hospital. Dmand AI links Dr. Ronnen to 4 more hospitals.
What medical group is Dr. Ellen A. Ronnen part of?
Dr. Ronnen is linked to Astera Cancer Care. Dmand AI links Dr. Ronnen to 1 more medical group.
Does Dr. Ellen A. Ronnen accept Medicare?
Yes. CMS data shows Dr. Ronnen billed Medicare for 61,200 services in 2024, and Dr. Ronnen accepts Medicare assignment.
Does Dr. Ellen A. Ronnen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ronnen as offering telehealth services.
What is Dr. Ellen A. Ronnen's MIPS score?
Dr. Ronnen's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Ellen A. Ronnen see?
CMS counts 779 Medicare patients who saw Dr. Ronnen in 2024, with an average age of 76.
What services does Dr. Ellen A. Ronnen bill to Medicare?
In 2024, Dr. Ronnen's most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J9271) and injected or infused drug (J1569).
Where did Dr. Ellen A. Ronnen go to medical school?
Dr. Ronnen graduated from Albert Einstein College of Medicine of Yeshiva University in 1999.
What drugs does Dr. Ellen A. Ronnen prescribe most?
In 2024 Medicare Part D data, Dr. Ronnen's most prescribed drugs by claims were Anastrozole, Eliquis and Procrit.
Has Dr. Ellen A. Ronnen received payments from drug or device companies?
CMS Open Payments shows $3,709 in general payments to Dr. Ronnen from 28 companies from 2016 to 2025. The largest total came from Incyte Corporation.
How long has Dr. Ellen A. Ronnen been practicing?
Dr. Ronnen graduated from medical school in 1999, 27 years ago.
Does Dr. Ellen A. Ronnen do research?
Dmand AI links 2 publications to Dr. Ronnen, published from 2019 to 2024.
Who does Dr. Ellen A. Ronnen publish with?
Dr. Ronnen's most frequent co-authors are Melissa Stuart Dillmon, MD (1 shared paper), Smith Giri (1 shared paper) and Issam Makhoul, MD (1 shared paper).
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