Dr. Daphne Brooks Stewart, MD
- Medicare services, 2024
- 297
- Medicare patients, 2024
- 142
- Part D claims, 2024
- 234
- Publications
- 6
- Clinical trials
- 5
- Practice address
- 1516 San Pablo St, Los Angeles, CA 90033
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Urology - Nch Urology - HOPD
Acute Care Hospital outpatient department · Los Angeles, California
Find Dr. Stewart'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. Daphne Brooks Stewart is a medical oncologist in Los Angeles, California
Dr. Stewart practices at Urology - Nch Urology - HOPD in Los Angeles, California.
Dr. Stewart's NPI, 1598879918, was assigned on August 19, 2006. Dr. Stewart graduated from Vagelos College of Physicians and Surgeons in 1998. Dr. Stewart holds California license A69829.
- NPI
- 1598879918NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284650870
- NPI enumeration date
- August 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daphne Brooks Stewart practices at Urology - Nch Urology - HOPD in Los Angeles, California
Dr. Stewart's primary practice is Urology - Nch Urology - HOPD, at 1516 San Pablo St, Los Angeles, CA 90033.
- Urology - Nch Urology - HOPD1516 San Pablo St, Los Angeles, CA 90033
Source: Dmand AI Affiliation Data
Dr. Daphne Brooks Stewart is affiliated with 8 sites of care and 2 medical groups
Dr. Stewart's primary practice is Urology - Nch Urology - HOPD in Los Angeles, California. Dr. Stewart is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Stewart to 2 more hospitals, 2 hospital outpatient departments, 2 other sites and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Daphne Brooks Stewart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stewart practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Urology - Nch Urology - HOPD | Available with a free account |
| +7 more sites 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Daphne Brooks Stewart is one of 415 medical oncologists in California
Medical oncology is Dr. Stewart's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Stewart is board certified in hematology by the American Board of Internal Medicine. Dr. Stewart is licensed in California.
Specialties and state licenses
- Medical oncology, CaliforniaPrimary
Clinical focus
Dmand AI lists breast cancer, chronic leukemia, lung cancer and lymphoma among the conditions Dr. Stewart treats.
Medical oncologists near Dr. Stewart
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. Daphne Brooks Stewart billed Medicare for 297 services in 2024
CMS data shows 297 Medicare services from Dr. Stewart across 7 procedure codes in 2024, for 142 Medicare patients. Medicare paid $24,353 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stewart's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3302024: 28115%
- Other services
- 2023: 02024: 16
Dr. Stewart compared with the California median for medical oncologists, 2024
- Dr. Stewart
- California median
- Medicare services
- 297vs 49640% below
- Medicare patients
- 142vs 1548% below
- Part D claims
- 129vs 14410% below
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Stewart'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.
Need commercial claims for Dr. Stewart?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stewart and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daphne Brooks Stewart treated 142 Medicare patients in 2024, average age 73
CMS counts 142 Medicare patients who saw Dr. Stewart in 2024. The largest group is 65 to 74, with 72 patients. 75% of them have cancer, and 75% have high blood pressure. 41% are also on Medicaid. Their average risk score is 2.40, 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. Stewart's median patient age at 52, with 70% women.
Dr. Stewart's Medicare patients by age, 2024
Dr. Stewart's Medicare patients by sex, 2024
- Women12286%
- Men2014%
Chronic conditions among Dr. Stewart's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol74%
- Arthritis52%
- Diabetes37%
- Mood disorders34%
- Depression30%
- Ischemic heart disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stewart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daphne Brooks Stewart wrote 234 Medicare Part D claims in 2024
In 2024, Dr. Stewart wrote 234 Medicare Part D claims for 59 patients. 94% of them were for generic drugs. CMS names the drug for 129 of them, across 5 drugs with 11 or more claims each, at $3,846 in total drug cost. In 2023, CMS named 154 claims across 5 drugs.
Dr. Stewart's Part D claims by kind of drug, 2024
- Generic220 claims94%
- Brand-name14 claims6%
Dr. Stewart'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1542024: 12916%
Drugs named by CMS: 5 in 2024, 5 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. Daphne Brooks Stewart offers telehealth to Medicare patients
Dr. Stewart accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Stewart as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Daphne Brooks Stewart has 6 publications on record
Dmand AI links 6 papers to Dr. Stewart, published from 2014 to 2025. 2020 was the busiest year, with 2. Dr. Stewart's most frequent co-authors are Joanne E. Mortimer, MD, Laura Kruper, MD and Yuan Yuan, MD, PhD.
Dr. Stewart's papers by year, 2014 to 2025
Dr. Stewart's most frequent co-authors
- Joanne E. Mortimer, MD4 shared papers
- Laura Kruper, MD3 shared papers
- Yuan Yuan, MD, PhD3 shared papers
Recent publications by Dr. Stewart
See who Dr. Stewart researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stewart works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daphne Brooks Stewart has worked on 5 clinical trials
Dmand AI links Dr. Stewart to 5 clinical trials, 2 of them phase 2 studies. 3 are still active or recruiting. Conditions studied include Breast Neoplasms, Carcinosarcoma and Endometrial Neoplasms.
Clinical trials with Dr. Stewart by phase
- 1Phase 1: 1 trial
- 1Phase 1/2: 1 trial
- 2Phase 2: 2 trials
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in Dr. Stewart's trials
- Breast Neoplasms
- Carcinosarcoma
- Endometrial Neoplasms
- Epilepsy
- Ovarian Neoplasms
Investigators on the most trials with Dr. Stewart
- Panagiotis Konstantinopoulos, MD2 shared trials
- Lisa M. Barroilhet, MD1 shared trial
- James F. Barter, MD1 shared trial
Recent clinical trials with Dr. Stewart
A Randomized Phase 2 Study of Cabozantinib in Combination With Nivolumab in Advanced, Recurrent Metastatic Endometrial Cancer (opens in a new tab)
A Study of Targeted Agents for Patients With Recurrent or Persistent Endometrial Cancer (opens in a new tab)
A Study of LY3295668 Erbumine in Participants With Breast Cancer That Has Spread to Other Parts of the Body (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Daphne Brooks Stewart received $2,438 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Stewart from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 55% of the total. Seagen Inc. paid the most, $1,025.
General payments to Dr. Stewart by program year, 2016 to 2025
General payments to Dr. Stewart by kind, 2016 to 2025
- Food and beverage$1,34755%
- Honoraria$90037%
- Education$1918%
Companies that paid Dr. Stewart 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. Daphne Brooks Stewart graduated from Vagelos College of Physicians and Surgeons
Dr. Stewart graduated from Vagelos College of Physicians and Surgeons in 1998. Dr. Stewart is a member of ASCO.
- Medical school
- Board certified in hematology
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Daphne Brooks Stewart accepts plans from 9 insurance carriers
Dr. Stewart is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- GA State Medicaid
- +1 more carriersWith a free account
Plan types Dr. Stewart accepts, by number of carriers
- Medicare7
- PPO6
- HMO3
- EPO2
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Daphne Brooks Stewart'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Daphne Brooks Stewart
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. Daphne Brooks Stewart's NPI number?
Dr. Daphne Brooks Stewart's NPI number is 1598879918. It was assigned on August 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daphne Brooks Stewart?
Dr. Daphne Brooks Stewart is a medical oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Daphne Brooks Stewart practice?
Dr. Stewart practices at 1516 San Pablo St, Los Angeles, CA 90033. Dr. Stewart's primary practice is Urology - Nch Urology - HOPD in Los Angeles, California. Dmand AI also links Dr. Stewart to 2 hospitals, 2 hospital outpatient departments, 2 other sites and 1 medical group.
What is Dr. Daphne Brooks Stewart's medical license number?
Dr. Stewart holds California license A69829.
Which hospitals is Dr. Daphne Brooks Stewart affiliated with?
Dr. Stewart is affiliated with Los Angeles General Medical Center. Dmand AI links Dr. Stewart to 2 more hospitals.
What medical group is Dr. Daphne Brooks Stewart part of?
Dr. Stewart is linked to USC Care Medical Group. Dmand AI links Dr. Stewart to 1 more medical group.
Does Dr. Daphne Brooks Stewart accept Medicare?
Yes. CMS data shows Dr. Stewart billed Medicare for 297 services in 2024, and Dr. Stewart accepts Medicare assignment.
Does Dr. Daphne Brooks Stewart offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Stewart as offering telehealth services.
How many Medicare patients does Dr. Daphne Brooks Stewart see?
CMS counts 142 Medicare patients who saw Dr. Stewart in 2024, with an average age of 73.
Is Dr. Daphne Brooks Stewart board certified?
Yes. Dr. Stewart is board certified in hematology by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Daphne Brooks Stewart bill to Medicare?
In 2024, Dr. Stewart's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99233) and office visit, established patient (99214).
Where did Dr. Daphne Brooks Stewart go to medical school?
Dr. Stewart graduated from Vagelos College of Physicians and Surgeons in 1998.
What drugs does Dr. Daphne Brooks Stewart prescribe most?
In 2024 Medicare Part D data, Dr. Stewart's most prescribed drugs by claims were Anastrozole, Letrozole and Gabapentin.
Has Dr. Daphne Brooks Stewart received payments from drug or device companies?
CMS Open Payments shows $2,438 in general payments to Dr. Stewart from 18 companies from 2016 to 2025. The largest total came from Seagen Inc.
How long has Dr. Daphne Brooks Stewart been practicing?
Dr. Stewart graduated from medical school in 1998, 28 years ago.
Does Dr. Daphne Brooks Stewart do research?
Dmand AI links 6 publications to Dr. Stewart, published from 2014 to 2025. Dr. Stewart has worked on 5 clinical trials.
Who does Dr. Daphne Brooks Stewart publish with?
Dr. Stewart's most frequent co-authors are Joanne E. Mortimer, MD (4 shared papers), Laura Kruper, MD (3 shared papers) and Yuan Yuan, MD, PhD (3 shared papers).
What insurance does Dr. Daphne Brooks Stewart accept?
Dr. Stewart is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to medical oncology practices?
See medical oncologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card