Dr. Le-Young Lee, MD
- Medicare services, 2024
- 977
- Medicare patients, 2024
- 127
- Part D claims, 2024
- 2,635
- Hospital affiliations
- 2
- Industry payments
- $6,302
- Practice address
- 127 W Las Tunas Dr, San Gabriel, CA 91776
- Practice phone
- Call (626) 457-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medex Medical Group Inc
San Gabriel, California
Find Dr. Lee'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. Le-Young Lee is an internist in San Gabriel, California
Dr. Lee practices at Medex Medical Group Inc in San Gabriel, California.
Dr. Lee's NPI, 1861417586, was assigned on July 13, 2006. Dr. Lee graduated from Jefferson Medical College of Thomas Jefferson University in 1992. Dr. Lee holds California license G77879.
- NPI
- 1861417586NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274423819
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (626) 457-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Le-Young Lee practices at Medex Medical Group Inc in San Gabriel, California
Dr. Lee's primary practice is Medex Medical Group Inc, at 127 W Las Tunas Dr, San Gabriel, CA 91776 in Los Angeles County. The practice phone is (626) 457-8600.
- Medex Medical Group Inc127 W Las Tunas Dr, San Gabriel, CA 91776 · Los Angeles CountyPhone(626) 457-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Le-Young Lee is affiliated with 5 sites of care and 1 medical group
Dr. Lee's primary practice is Medex Medical Group Inc in San Gabriel, California. Dr. Lee is also affiliated with AHMC San Gabriel Valley Medical Center. The medical group on file is Medex Medical Group. Dmand AI also links Dr. Lee to 1 more hospital, 1 group practice or clinic and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Le-Young Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medex Medical Group Inc | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Le-Young Lee is one of 16,751 internists in California
Internal medicine is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lee is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Lee
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. Le-Young Lee billed Medicare for 977 services in 2024
CMS data shows 977 Medicare services from Dr. Lee across 11 procedure codes in 2024, for 127 Medicare patients. Medicare paid $77,105 for them.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8012024: 91114%
- Surgery
- 2023: 392024: 368%
- Tests and treatments
- 2023: 202024: 1525%
- Other services
- 2023: 202024: 1525%
Where Dr. Lee's Medicare services took place, 2024
- In an office45446%
- In a facility52354%
Dr. Lee compared with the California median for internists, 2024
- Dr. Lee
- California median
- Medicare services
- 977vs 3612.7 times
- Medicare patients
- 127vs 15116% below
- Part D claims
- 2,135vs 4215.1 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lee'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lee and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Le-Young Lee treated 127 Medicare patients in 2024, average age 78
CMS counts 127 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 85% are also on Medicaid. Their average risk score is 1.85, 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. Lee's median patient age at 61, with 52% women.
Dr. Lee's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lee's Medicare patients by sex, 2024
- Women6551%
- Men6249%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders48%
- Arthritis46%
- Alzheimer's and dementia43%
- Depression43%
- Diabetes43%
- Schizophrenia and other psychoses38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lee's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Le-Young Lee wrote 2,635 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 2,635 Medicare Part D claims for 153 patients. 89% of them were for generic drugs. CMS names the drug for 2,135 of them, across 60 drugs with 11 or more claims each, at $141,591 in total drug cost. In 2023, CMS named 2,372 claims across 66 drugs.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic2,336 claims89%
- Brand-name and other299 claims11%
Dr. Lee'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. Lee's Part D claims, 2024
- Antibiotics2%62 of 2,635 claims
- Antipsychotics, patients 65 and over2%65 of 2,635 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: 2,3722024: 2,13510%
Drugs named by CMS: 60 in 2024, 66 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. Le-Young Lee offers telehealth to Medicare patients
Dr. Lee accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lee as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Le-Young Lee received $6,302 in industry payments from 2016 to 2025
CMS Open Payments shows 119 general payments to Dr. Lee from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Novo Nordisk Inc paid the most, $2,294.
General payments to Dr. Lee by program year, 2016 to 2025
General payments to Dr. Lee by kind, 2016 to 2025
- Food and beverage$6,24099%
- Education$621%
Companies that paid Dr. Lee 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. Le-Young Lee graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Lee graduated from Jefferson Medical College of Thomas Jefferson University in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Le-Young Lee'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Le-Young Lee
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. Le-Young Lee's NPI number?
Dr. Le-Young Lee's NPI number is 1861417586. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Le-Young Lee?
Dr. Le-Young Lee is an internist in San Gabriel, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Le-Young Lee practice?
Dr. Lee practices at 127 W Las Tunas Dr, San Gabriel, CA 91776. Dr. Lee's primary practice is Medex Medical Group Inc in San Gabriel, California. Dmand AI also links Dr. Lee to 1 hospital, 1 group practice or clinic and 1 skilled nursing facility.
What is Dr. Le-Young Lee's office phone number?
The practice phone on file for Dr. Lee is (626) 457-8600.
What is Dr. Le-Young Lee's medical license number?
Dr. Lee holds California license G77879.
Which hospitals is Dr. Le-Young Lee affiliated with?
Dr. Lee is affiliated with AHMC San Gabriel Valley Medical Center. Dmand AI links Dr. Lee to 1 more hospital.
What medical group is Dr. Le-Young Lee part of?
Dr. Lee is linked to Medex Medical Group.
Does Dr. Le-Young Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 977 services in 2024, and Dr. Lee accepts Medicare assignment.
Does Dr. Le-Young Lee offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lee as offering telehealth services.
How many Medicare patients does Dr. Le-Young Lee see?
CMS counts 127 Medicare patients who saw Dr. Lee in 2024, with an average age of 78.
Show 5 more questionsShow fewer questions
What services does Dr. Le-Young Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and nursing facility care (99310).
Where did Dr. Le-Young Lee go to medical school?
Dr. Lee graduated from Jefferson Medical College of Thomas Jefferson University in 1992.
What drugs does Dr. Le-Young Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Rosuvastatin Calcium, Amlodipine Besylate and Olmesartan Medoxomil.
Has Dr. Le-Young Lee received payments from drug or device companies?
CMS Open Payments shows $6,302 in general payments to Dr. Lee from 16 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Le-Young Lee been practicing?
Dr. Lee graduated from medical school in 1992, 34 years ago.
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