J Clin Psychopharmacol
Antipsychotic AgentsInappropriate ADH SyndromeMood Disorders
Dr. Margaret W. Leung, MD
NPI1215124938PAC ID5597916551
- Medicare services, 2019
- 36
- Part D claims, 2024
- 89
- Publications
- 4
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 1600 Eureka Road, Roseville, CA 95661
- Practice phone
- Call (916) 784-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leung's professional email, personal email and mobile number
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Dr. Margaret W. Leung is an internist in Roseville, California
Dr. Leung practices at Roseville Medical Center in Roseville, California, part of Kaiser Permanente.
Dr. Leung's NPI, 1215124938, was assigned on September 26, 2007. Dr. Leung graduated from UC San Diego School of Medicine in 2007. Dr. Leung holds California license A105248.
NPI and contact details
- NPI
- 1215124938NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597916551
- NPI enumeration date
- September 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 784-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret W. Leung practices at Roseville Medical Center in Roseville, California
Dr. Leung's primary practice is Roseville Medical Center, at 1600 Eureka Road, Roseville, CA 95661 in Placer County. The practice phone is (916) 784-4000.
- Roseville Medical Center1600 Eureka Road, Roseville, CA 95661 · Placer CountyPhone(916) 784-4000
Source: Dmand AI Affiliation Data
Dr. Margaret W. Leung is affiliated with 3 sites of care and 1 medical group
Dr. Leung's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Leung to 2 more hospices, 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. Margaret W. Leung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leung practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roseville Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret W. Leung is one of 16,751 internists in California
Internal medicine is Dr. Leung's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Leung is board certified in hospice and palliative medicine by the American Board of Internal Medicine. Dmand AI has Dr. Leung's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Massachusetts license
Internists near Dr. Leung
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. Margaret W. Leung billed Medicare for 36 services in 2019
CMS data shows 36 Medicare services from Dr. Leung across 2 procedure codes in 2019. Medicare paid $1,473 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 201936
Paid by Medicare$1,473
Procedure codes2
Dr. Leung compared with the California median for internists, 2019
- Dr. Leung
- California median
- Medicare services
- 36vs 36190% below
- Part D claims
- 20vs 42195% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Leung's most billed Medicare procedure codes, 2019
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 internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margaret W. Leung's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Leung's median patient age at 81, with 57% women.
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 81
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Margaret W. Leung wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Leung wrote 89 Medicare Part D claims for 22 patients. 97% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $549 in total drug cost. In 2022, CMS named 18 claims across 1 drug.
Part D claims, 202489
Drugs named by CMS1
Total drug cost$549
Part D patients22
Dr. Leung's Part D claims by kind of drug, 2024
- Generic86 claims97%
- Brand-name and other3 claims3%
Dr. Leung's most prescribed drugs by claims, 2023
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
- Opioids56%50 of 89 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 182023: 2011%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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. Margaret W. 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. Margaret W. Leung has 4 publications on record
Dmand AI links 4 papers to Dr. Leung. Dr. Leung's most frequent co-authors are Glen L. Xiong, MD, Don S. Dizon, MD and Shari Beth Goldfarb, MD.
Papers4
Dr. Leung's most frequent co-authors
Recent publications by Dr. Leung
CaliforniaHospitals, GeneralHospitals, Psychiatric
Prim Care Companion CNS Disord
CommunicationPalliative CarePatient-Centered Care
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Margaret W. Leung graduated from UC San Diego School of Medicine
Dr. Leung graduated from UC San Diego School of Medicine in 2007.
- Medical school
- Board certified in hospice and palliative medicine
- Board certified in internal medicine
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Margaret W. Leung accepts plans from 2 insurance carriers
Dr. Leung is in network with 2 carriers, including CMS Medicare and RI State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
- RI State Medicaid
Plan types Dr. Leung accepts, by number of carriers
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Margaret W. 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 Data |
| 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 |
| 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. Margaret W. 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. Margaret W. Leung's NPI number?
Dr. Margaret W. Leung's NPI number is 1215124938. It was assigned on September 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret W. Leung?
Dr. Margaret W. Leung is an internist in Roseville, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Margaret W. Leung practice?
Dr. Leung practices at 1600 Eureka Road, Roseville, CA 95661. Dr. Leung's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente. Dmand AI also links Dr. Leung to 2 hospices.
What is Dr. Margaret W. Leung's office phone number?
The practice phone on file for Dr. Leung is (916) 784-4000.
What is Dr. Margaret W. Leung's medical license number?
Dr. Leung holds California license A105248, one of the licenses on file in 2 states.
Which states has Dr. Margaret W. Leung been licensed in?
Dmand AI has state licenses on file for Dr. Leung in California (2008 to 2026) and Massachusetts (2013 to 2016).
Which hospitals is Dr. Margaret W. Leung affiliated with?
Dr. Leung practices at Roseville Medical Center in Roseville, California.
What medical group is Dr. Margaret W. Leung part of?
Dr. Leung is linked to The Permanente Medical Group, Inc.
Does Dr. Margaret W. Leung accept Medicare?
Yes. CMS data shows Dr. Leung billed Medicare for 36 services in 2019, and Dr. Leung accepts Medicare assignment.
Is Dr. Margaret W. Leung board certified?
Yes. Dr. Leung is board certified in hospice and palliative medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Margaret W. Leung bill to Medicare?
In 2019, Dr. Leung's most billed Medicare services were hospital inpatient care (99231) and hospital inpatient care (99232).
Where did Dr. Margaret W. Leung go to medical school?
Dr. Leung graduated from UC San Diego School of Medicine in 2007.
What drugs does Dr. Margaret W. Leung prescribe most?
In 2023 Medicare Part D data, Dr. Leung's most prescribed drugs by claims were Oxycodone HCl.
How long has Dr. Margaret W. Leung been practicing?
Dr. Leung graduated from medical school in 2007, 19 years ago.
Does Dr. Margaret W. Leung do research?
Dmand AI links 4 publications to Dr. Leung.
Who does Dr. Margaret W. Leung publish with?
Dr. Leung's most frequent co-authors are Glen L. Xiong, MD (2 shared papers), Don S. Dizon, MD (1 shared paper) and Shari Beth Goldfarb, MD (1 shared paper).
What insurance does Dr. Margaret W. Leung accept?
Dr. Leung is in network with 2 carriers, including CMS Medicare and RI State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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