Dr. Byong-Wha Esther Lee, MD
- Medicare services, 2024
- 790
- Medicare patients, 2024
- 122
- Part D claims, 2024
- 4,226
- Industry payments
- $1,152
- Medical groups
- 2
- Practice address
- 14550 Soledad Canyon Rd, Canyon Country, CA 91387
- Practice phone
- Call (818) 837-5776
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Facey Endoscopy Center
Canyon Country, California
Find Dr. Lee's professional email, personal email and mobile number
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Dr. Byong-Wha Esther Lee is an internist in Canyon Country, California
Dr. Lee practices at Facey Endoscopy Center in Canyon Country, California.
Dr. Lee's NPI, 1881613412, was assigned on July 18, 2006. Dr. Lee graduated from OHSU School of Medicine in 1986. Dr. Lee holds California license G68100.
- NPI
- 1881613412NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547253452
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 837-5776
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Byong-Wha Esther Lee practices at Facey Endoscopy Center in Canyon Country, California
Dr. Lee's primary practice is Facey Endoscopy Center, at 14550 Soledad Canyon Rd, Canyon Country, CA 91387 in Los Angeles County. The practice phone is (818) 837-5776.
- Facey Endoscopy Center14550 Soledad Canyon Rd, Canyon Country, CA 91387 · Los Angeles CountyPhone(818) 837-5776
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Byong-Wha Esther Lee is affiliated with 1 site of care and 2 medical groups
Dr. Lee's primary practice is Facey Endoscopy Center in Canyon Country, California. The medical group on file is Facey Medical Group. Dmand AI also links Dr. Lee to 1 more medical group, 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. Byong-Wha Esther Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Facey Endoscopy Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Byong-Wha Esther 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 board certified in infectious disease by the American Board of Internal Medicine. Dr. Lee is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute mini-stroke (TIA), acute sinusitis, adjustment disease, aneurysm, aortic atherosclerois, cerebrovascular disease, chronic anemia and chronic diabetes among the conditions Dr. Lee treats.
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. Byong-Wha Esther Lee billed Medicare for 790 services in 2024
CMS data shows 790 Medicare services from Dr. Lee across 14 procedure codes in 2024, for 122 Medicare patients. Medicare paid $40,117 for them. Every service was in an office.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2172024: 25116%
- Office and hospital visits
- 2023: 2492024: 2511%
- Imaging
- 2023: 742024: 12164%
- Other services
- 2023: 162024: 121656%
- Tests and treatments
- 2023: 152024: 46207%
Dr. Lee compared with the California median for internists, 2024
- Dr. Lee
- California median
- Medicare services
- 790vs 3612.2 times
- Medicare patients
- 122vs 15119% below
- Part D claims
- 3,757vs 4218.9 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.
Need commercial claims for Dr. Lee?
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. Byong-Wha Esther Lee treated 122 Medicare patients in 2024, average age 72
CMS counts 122 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 13% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 70, with 69% 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
- Women8166%
- Men4134%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis39%
- Diabetes25%
- Chronic kidney disease22%
- Osteoporosis18%
- Mood disorders17%
- Cancer16%
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 70
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Byong-Wha Esther Lee wrote 4,226 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 4,226 Medicare Part D claims for 430 patients. 93% of them were for generic drugs. CMS names the drug for 3,757 of them, across 56 drugs with 11 or more claims each, at $146,062 in total drug cost. In 2023, CMS named 3,935 claims across 63 drugs.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic3,942 claims93%
- Brand-name273 claims6%
- Other11 claims0%
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
- Opioids2%100 of 4,226 claims
- Antibiotics1%55 of 4,226 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: 3,9352024: 3,7575%
Drugs named by CMS: 56 in 2024, 63 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. Byong-Wha Esther Lee takes part in Medicare
Dr. Lee 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. Byong-Wha Esther Lee received $1,152 in industry payments from 2016 to 2021
CMS Open Payments shows 69 general payments to Dr. Lee from 14 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 98% of the total. Pfizer Inc. paid the most, $441.
General payments to Dr. Lee by program year, 2016 to 2021
General payments to Dr. Lee by kind, 2016 to 2021
- Food and beverage$1,12598%
- Debt forgiveness$272%
Companies that paid Dr. Lee the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Byong-Wha Esther Lee has 1 award and honors on record
Dmand AI lists 1 award for Dr. Lee, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Lee
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Byong-Wha Esther Lee graduated from OHSU School of Medicine
Dr. Lee graduated from OHSU School of Medicine in 1986.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Byong-Wha Esther Lee accepts plans from 8 insurance carriers
Dr. Lee is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Cigna
- CMS Medicare
- Humana
Plan types Dr. Lee accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Byong-Wha Esther 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) |
| 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. Byong-Wha Esther 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. Byong-Wha Esther Lee's NPI number?
Dr. Byong-Wha Esther Lee's NPI number is 1881613412. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Byong-Wha Esther Lee?
Dr. Byong-Wha Esther Lee is an internist in Canyon Country, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Byong-Wha Esther Lee practice?
Dr. Lee practices at 14550 Soledad Canyon Rd, Canyon Country, CA 91387. Dr. Lee's primary practice is Facey Endoscopy Center in Canyon Country, California. Dmand AI also links Dr. Lee to 1 medical group.
What is Dr. Byong-Wha Esther Lee's office phone number?
The practice phone on file for Dr. Lee is (818) 837-5776.
What is Dr. Byong-Wha Esther Lee's medical license number?
Dr. Lee holds California license G68100.
What medical group is Dr. Byong-Wha Esther Lee part of?
Dr. Lee is linked to Facey Medical Group. Dmand AI links Dr. Lee to 1 more medical group.
Does Dr. Byong-Wha Esther Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 790 services in 2024, and Dr. Lee accepts Medicare assignment.
How many Medicare patients does Dr. Byong-Wha Esther Lee see?
CMS counts 122 Medicare patients who saw Dr. Lee in 2024, with an average age of 72.
Is Dr. Byong-Wha Esther Lee board certified?
Yes. Dr. Lee is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Byong-Wha Esther Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and medicare service (G2211).
Show 5 more questionsShow fewer questions
Where did Dr. Byong-Wha Esther Lee go to medical school?
Dr. Lee graduated from OHSU School of Medicine in 1986.
What drugs does Dr. Byong-Wha Esther Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Byong-Wha Esther Lee received payments from drug or device companies?
CMS Open Payments shows $1,152 in general payments to Dr. Lee from 14 companies from 2016 to 2021. The largest total came from Pfizer Inc.
How long has Dr. Byong-Wha Esther Lee been practicing?
Dr. Lee graduated from medical school in 1986, 40 years ago.
What insurance does Dr. Byong-Wha Esther Lee accept?
Dr. Lee is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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