Dr. Haley Ellis, MD
- Medicare services, 2024
- 195
- Medicare patients, 2024
- 57
- Part D claims, 2024
- 40
- Hospital affiliations
- 5
- Industry payments
- $21,326
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ellis' 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. Haley Ellis is a medical oncologist in Boston, Massachusetts
Dr. Ellis practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Ellis' NPI, 1972098820, was assigned on June 24, 2018.
- NPI
- 1972098820NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749612596
- NPI enumeration date
- June 24, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Haley Ellis practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Ellis' primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Haley Ellis is affiliated with 8 sites of care and 3 medical groups
Dr. Ellis' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Ellis is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Hospital. Dmand AI also links Dr. Ellis to 3 more hospitals, 2 medical groups, 1 home health agency, 1 hospice and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Haley Ellis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ellis practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Haley Ellis is one of 290 medical oncologists in Massachusetts
Medical oncology is Dr. Ellis' primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Ellis has a license on file in Massachusetts.
Specialties and state licenses
- Medical oncology, Massachusetts
Medical oncologists near Dr. Ellis
Counts of medical 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. Haley Ellis billed Medicare for 195 services in 2024
CMS data shows 195 Medicare services from Dr. Ellis across 4 procedure codes in 2024, for 57 Medicare patients. Medicare paid $13,993 for them.
Dr. Ellis' Medicare services by type, 2024
- Office and hospital visits108
- Other services87
Where Dr. Ellis' Medicare services took place, 2024
- In an office2714%
- In a facility16886%
Dr. Ellis compared with the Massachusetts median for medical oncologists, 2024
- Dr. Ellis
- Massachusetts median
- Medicare services
- 195vs 26025% below
- Medicare patients
- 57vs 10948% below
- Part D claims
- 117vs 6386% above
Medians across 259 medical oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ellis' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Haley Ellis treated 57 Medicare patients in 2024, average age 73
CMS counts 57 Medicare patients who saw Dr. Ellis in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.44, 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. Ellis' median patient age at 71, with 53% women.
Dr. Ellis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ellis' Medicare patients by sex, 2024
- Women2442%
- Men3358%
Chronic conditions among Dr. Ellis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Chronic kidney disease44%
- Cancer42%
- Arthritis40%
- Anxiety39%
- Mood disorders39%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ellis' 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
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Haley Ellis wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Ellis wrote 40 Medicare Part D claims for 16 patients. 90% of them were for generic drugs. They cover 5 drugs, with $12,792 in total drug cost. In 2020, CMS named 334 claims across 17 drugs.
Dr. Ellis' Part D claims by kind of drug, 2024
- Generic36 claims90%
- Brand-name and other4 claims10%
Dr. Ellis' most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 3342021: 11765%
Drugs named by CMS: 5 in 2021, 17 in 2020.
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. Haley Ellis offers telehealth to Medicare patients
Dr. Ellis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ellis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Haley Ellis received $21,326 in industry payments from 2024 to 2025
CMS Open Payments shows 21 general payments to Dr. Ellis from 4 drug and device companies from 2024 to 2025. Consulting fees make up the largest share, 97% of the total. Jazz Pharmaceuticals Inc. paid the most, $17,921.
General payments to Dr. Ellis by program year, 2024 to 2025
General payments to Dr. Ellis by kind, 2024 to 2025
- Consulting fees$20,59697%
- Food and beverage$7303%
Companies that paid Dr. Ellis the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Haley Ellis'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) |
| 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. Haley Ellis
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. Haley Ellis' NPI number?
Dr. Haley Ellis' NPI number is 1972098820. It was assigned on June 24, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Haley Ellis?
Dr. Haley Ellis is a medical oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Haley Ellis practice?
Dr. Ellis practices at 75 Francis Street, Boston, MA 02115. Dr. Ellis' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Ellis to 3 hospitals, 2 medical groups, 1 home health agency, 1 hospice and 1 hospital outpatient department.
What is Dr. Haley Ellis' office phone number?
The practice phone on file for Dr. Ellis is (617) 732-5500.
Which hospitals is Dr. Haley Ellis affiliated with?
Dr. Ellis practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Ellis is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Ellis to 3 more hospitals.
What medical group is Dr. Haley Ellis part of?
Dr. Ellis is linked to Massachusetts General Hospital. Dmand AI links Dr. Ellis to 2 more medical groups.
Does Dr. Haley Ellis accept Medicare?
Yes. CMS data shows Dr. Ellis billed Medicare for 195 services in 2024, and Dr. Ellis accepts Medicare assignment.
Does Dr. Haley Ellis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ellis as offering telehealth services.
How many Medicare patients does Dr. Haley Ellis see?
CMS counts 57 Medicare patients who saw Dr. Ellis in 2024, with an average age of 73.
What services does Dr. Haley Ellis bill to Medicare?
In 2024, Dr. Ellis' most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and hospital inpatient care (99233).
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What drugs does Dr. Haley Ellis prescribe most?
In 2021 Medicare Part D data, Dr. Ellis' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Eliquis.
Has Dr. Haley Ellis received payments from drug or device companies?
CMS Open Payments shows $21,326 in general payments to Dr. Ellis from 4 companies from 2024 to 2025. The largest total came from Jazz Pharmaceuticals Inc.
How long has Dr. Haley Ellis been practicing?
Dr. Ellis graduated from medical school in 2018, 8 years ago.
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