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Dr. Millie M. Leung, MD
NPI1215085162PAC ID0648177642
- Medicare services, 2021
- 30
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 1,177
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Practice phone
- Call (626) 851-1011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Millie M. Leung is a hematologist and oncologist in Baldwin Park, California
Dr. Leung practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
Dr. Leung's NPI, 1215085162, was assigned on January 8, 2007. Dr. Leung graduated from Keck School of Medicine of USC in 1995. Dr. Leung holds California license A61489.
NPI and contact details
- NPI
- 1215085162NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648177642
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 851-1011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Millie M. Leung practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California
Dr. Leung's primary practice is Kaiser Permanente Baldwin Park Medical Center, at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706 in Los Angeles County. The practice phone is (626) 851-1011.
- Kaiser Permanente Baldwin Park Medical Center1011 Baldwin Park Blvd, Baldwin Park, CA 91706 · Los Angeles CountyPhone(626) 851-1011
Source: Dmand AI Affiliation Data
Dr. Millie M. Leung is affiliated with 1 site of care and 1 medical group
Dr. Leung's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Millie M. Leung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Baldwin Park Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Millie M. Leung is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Leung's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Leung is board certified in medical oncology by the American Board of Internal Medicine. Dr. Leung is licensed in California.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
Hematologists and oncologists near Dr. Leung
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
1,502hematologists and oncologists in California
6hematologists and oncologists in Baldwin Park
6hematologists and oncologists at Kaiser Permanente Baldwin Park Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Millie M. Leung billed Medicare for 30 services in 2021
CMS data shows 30 Medicare services from Dr. Leung across 1 procedure code in 2021, for 12 Medicare patients. Medicare paid $64 for them. Every service was in an office.
Medicare services, 202130
Medicare patients12
Paid by Medicare$64
Procedure codes1
Dr. Leung compared with the California median for hematologists and oncologists, 2021
- Dr. Leung
- California median
- Medicare services
- 30vs 93297% below
- Medicare patients
- 12vs 22595% below
- Part D claims
- 986vs 3942.5 times
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Leung's most billed Medicare procedure codes, 2021
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. Leung?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leung and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Millie M. Leung treated 12 Medicare patients in 2024, average age 64
CMS counts 12 Medicare patients who saw Dr. Leung in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 2.28, 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. Leung's median patient age at 65, with 66% women.
Medicare patients, 202412
Average age64
Average risk score2.28
Dr. Leung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Leung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Millie M. Leung wrote 1,177 Medicare Part D claims in 2024
In 2024, Dr. Leung wrote 1,177 Medicare Part D claims for 212 patients. 74% of them were for generic drugs. CMS names the drug for 986 of them, across 25 drugs with 11 or more claims each, at $3,697,648 in total drug cost. In 2023, CMS named 827 claims across 24 drugs.
Part D claims, 20241,177
Drugs named by CMS25
Total drug cost$3.7M
Part D patients212
Dr. Leung's Part D claims by kind of drug, 2024
- Generic872 claims74%
- Brand-name and other305 claims26%
Dr. Leung'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. Leung's Part D claims, 2024
- Opioids2%27 of 1,177 claims
- Antibiotics1%16 of 1,177 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: 8272024: 98619%
Drugs named by CMS: 25 in 2024, 24 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. Millie M. Leung takes part in Medicare
Dr. Leung 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. Millie M. Leung has 3 publications on record
Dmand AI links 3 papers to Dr. Leung. The most frequent topics are Immunocompromised Host. Dr. Leung's most frequent co-authors are Gary Morton Annunziata, DO, Joel Mark Hirschberg, MD and Richard Y. Lam, MD.
Papers3
Topics Dr. Leung writes about most
- Immunocompromised Host
Dr. Leung's most frequent co-authors
- Gary Morton Annunziata, DO1 shared paper
- Joel Mark Hirschberg, MD1 shared paper
- Richard Y. Lam, MD1 shared paper
Recent publications by Dr. Leung
Adrenal Cortex HormonesAmpicillinAnti-Bacterial Agents
Emerg Infect Dis
ActinomycesActinomycosisAnti-Infective Agents
See who Dr. Leung researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leung 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. Millie M. Leung received $186 in industry payments from 2018 to 2019
CMS Open Payments shows 3 general payments to Dr. Leung from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $111.
General payments to Dr. Leung by program year, 2018 to 2019
Companies that paid Dr. Leung the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Millie M. Leung has 1 award and honors on record
Dmand AI lists 1 award for Dr. Leung, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Leung
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Millie M. Leung graduated from Keck School of Medicine of USC
Dr. Leung graduated from Keck School of Medicine of USC in 1995.
- Medical school
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Millie M. Leung accepts plans from 2 insurance carriers
Dr. Leung is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Leung accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Millie M. Leung'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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Millie M. Leung
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. Millie M. Leung's NPI number?
Dr. Millie M. Leung's NPI number is 1215085162. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Millie M. Leung?
Dr. Millie M. Leung is a hematologist and oncologist in Baldwin Park, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Millie M. Leung practice?
Dr. Leung practices at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706. Dr. Leung's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
What is Dr. Millie M. Leung's office phone number?
The practice phone on file for Dr. Leung is (626) 851-1011.
What is Dr. Millie M. Leung's medical license number?
Dr. Leung holds California license A61489.
Which hospitals is Dr. Millie M. Leung affiliated with?
Dr. Leung practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California.
What medical group is Dr. Millie M. Leung part of?
Dr. Leung is linked to Southern California Permanente Medical Group.
Does Dr. Millie M. Leung accept Medicare?
Yes. CMS data shows Dr. Leung billed Medicare for 30 services in 2021, and Dr. Leung accepts Medicare assignment.
How many Medicare patients does Dr. Millie M. Leung see?
CMS counts 12 Medicare patients who saw Dr. Leung in 2024, with an average age of 64.
Is Dr. Millie M. Leung board certified?
Yes. Dr. Leung is board certified in medical oncology by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Millie M. Leung bill to Medicare?
In 2021, Dr. Leung's most billed Medicare services were injected or infused drug (J7030).
Where did Dr. Millie M. Leung go to medical school?
Dr. Leung graduated from Keck School of Medicine of USC in 1995.
What drugs does Dr. Millie M. Leung prescribe most?
In 2024 Medicare Part D data, Dr. Leung's most prescribed drugs by claims were Anastrozole, Lenalidomide and Letrozole.
Has Dr. Millie M. Leung received payments from drug or device companies?
CMS Open Payments shows $186 in general payments to Dr. Leung from 2 companies from 2018 to 2019. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Millie M. Leung been practicing?
Dr. Leung graduated from medical school in 1995, 31 years ago.
Does Dr. Millie M. Leung do research?
Dmand AI links 3 publications to Dr. Leung.
Who does Dr. Millie M. Leung publish with?
Dr. Leung's most frequent co-authors are Gary Morton Annunziata, DO (1 shared paper), Joel Mark Hirschberg, MD (1 shared paper) and Richard Y. Lam, MD (1 shared paper).
What insurance does Dr. Millie M. Leung accept?
Dr. Leung is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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