Dr. Benjamin Leong, MD
- Medicare services, 2023
- 11
- Part D claims, 2024
- 279
- Industry payments
- $1,210
- Affiliated sites
- 4
- Medical groups
- 2
- Practice address
- 9400 Rosecrans Avenue, Bellflower, CA 90706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD
Acute Care Hospital outpatient department · Bellflower, California
Find Dr. Leong's professional email, personal email and mobile number
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Dr. Benjamin Leong is a family medicine physician in Bellflower, California
Dr. Leong practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California.
Dr. Leong's NPI, 1184042202, was assigned on April 4, 2014. Dr. Leong graduated from Tulane University School of Medicine in 2014. Dr. Leong holds California license A141044.
- NPI
- 1184042202NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981990793
- NPI enumeration date
- April 4, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Benjamin Leong practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California
Dr. Leong's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD, at 9400 Rosecrans Avenue, Bellflower, CA 90706.
- Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD9400 Rosecrans Avenue, Bellflower, CA 90706
Source: Dmand AI Affiliation Data
Dr. Benjamin Leong is affiliated with 4 sites of care and 2 medical groups
Dr. Leong's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Leong to 2 more group practices and clinics, 1 breast imaging center and 1 medical group, each named with a free account. Dr. Leong's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Benjamin Leong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leong practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin Leong is one of 15,680 family medicine physicians in California
Family medicine is Dr. Leong's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Leong is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Leong
Counts of family medicine physicians 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. Benjamin Leong billed Medicare for 11 services in 2023
CMS data shows 11 Medicare services from Dr. Leong across 1 procedure code in 2023, all of them office visits. Medicare paid $375 for them. Every service was in an office.
Dr. Leong's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 182023: 1139%
Dr. Leong compared with the California median for family medicine physicians, 2023
- Dr. Leong
- California median
- Medicare services
- 11vs 24696% below
- Part D claims
- 225vs 83373% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Leong's most billed Medicare procedure codes, 2023
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. Leong and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Benjamin Leong's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Leong's median patient age at 42, with 76% women.
Dr. Leong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women76%
- Men23%
Source: Dmand AI Patient Panel Data
Dr. Benjamin Leong wrote 279 Medicare Part D claims in 2024
In 2024, Dr. Leong wrote 279 Medicare Part D claims for 82 patients. 74% of them were for generic drugs. CMS names the drug for 225 of them, across 4 drugs with 11 or more claims each, at $51,462 in total drug cost. In 2023, CMS named 171 claims across 9 drugs.
Dr. Leong's Part D claims by kind of drug, 2024
- Generic207 claims74%
- Brand-name72 claims26%
Dr. Leong'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. Leong's Part D claims, 2024
- Antibiotics4%11 of 279 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: 1712024: 22532%
Drugs named by CMS: 4 in 2024, 9 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. Benjamin Leong takes part in Medicare
Dr. Leong 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. Benjamin Leong received $1,210 in industry payments from 2016 to 2024
CMS Open Payments shows 14 general payments to Dr. Leong from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 62% of the total. Medtronic, Inc. paid the most, $462.
General payments to Dr. Leong by program year, 2016 to 2024
General payments to Dr. Leong by kind, 2016 to 2024
- Food and beverage$74862%
- Travel and lodging$46238%
Companies that paid Dr. Leong the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Benjamin Leong graduated from Tulane University School of Medicine
Dr. Leong graduated from Tulane University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Benjamin Leong'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 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) |
| 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. Benjamin Leong
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What is Dr. Benjamin Leong's NPI number?
Dr. Benjamin Leong's NPI number is 1184042202. It was assigned on April 4, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin Leong?
Dr. Benjamin Leong is a family medicine physician in Bellflower, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Benjamin Leong practice?
Dr. Leong practices at 9400 Rosecrans Avenue, Bellflower, CA 90706. Dr. Leong's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dmand AI also links Dr. Leong to 2 group practices and clinics, 1 breast imaging center and 1 medical group.
What is Dr. Benjamin Leong's medical license number?
Dr. Leong holds California license A141044.
What medical group is Dr. Benjamin Leong part of?
Dr. Leong is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Leong to 1 more medical group.
Does Dr. Benjamin Leong accept Medicare?
Yes. CMS data shows Dr. Leong billed Medicare for 11 services in 2023, and Dr. Leong accepts Medicare assignment.
What services does Dr. Benjamin Leong bill to Medicare?
In 2023, Dr. Leong's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Benjamin Leong go to medical school?
Dr. Leong graduated from Tulane University School of Medicine in 2014.
What drugs does Dr. Benjamin Leong prescribe most?
In 2024 Medicare Part D data, Dr. Leong's most prescribed drugs by claims were Topiramate, Ozempic and Metformin HCl ER.
Has Dr. Benjamin Leong received payments from drug or device companies?
CMS Open Payments shows $1,210 in general payments to Dr. Leong from 10 companies from 2016 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Benjamin Leong been practicing?
Dr. Leong graduated from medical school in 2014, 12 years ago.
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