Dr. Ivan Jisoo Lee, MD
- Medicare services, 2024
- 64
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 507
- Hospital affiliations
- 2
- Industry payments
- $2,460
- Practice address
- 301 W Bastanchury Rd, Fullerton, CA 92835
- Practice phone
- Call (949) 706-2887
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fullerton Clinical and Surgical Facility
Fullerton, California
Find Dr. Lee's professional email, personal email and mobile number
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Dr. Ivan Jisoo Lee is an ophthalmologist in Fullerton, California
Dr. Lee practices at Fullerton Clinical and Surgical Facility in Fullerton, California.
Dr. Lee's NPI, 1942769831, was assigned on March 19, 2019. Dr. Lee graduated from Oakland Univ, William Beaumont School of Medicine in 2019. Dr. Lee holds Ohio license 35.147835.
- NPI
- 1942769831NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143551457
- NPI enumeration date
- March 19, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 706-2887
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ivan Jisoo Lee practices at Fullerton Clinical and Surgical Facility in Fullerton, California
Dr. Lee's primary practice is Fullerton Clinical and Surgical Facility, at 301 W Bastanchury Rd, Fullerton, CA 92835 in Orange County. The practice phone is (949) 706-2887.
- Fullerton Clinical and Surgical Facility301 W Bastanchury Rd, Fullerton, CA 92835 · Orange CountyPhone(949) 706-2887
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ivan Jisoo Lee is affiliated with 4 sites of care and 1 medical group
Dr. Lee's primary practice is Fullerton Clinical and Surgical Facility in Fullerton, California. Dr. Lee is also affiliated with Providence St. Jude Medical Center. Dmand AI also links Dr. Lee to 1 more hospital, 1 group practice or clinic and 1 medical group, 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. Ivan Jisoo Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fullerton Clinical and Surgical Facility | 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. Ivan Jisoo Lee is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Lee is licensed in Ohio.
Specialties and state licenses
- Ophthalmology, OhioPrimary
Ophthalmologists near Dr. Lee
Counts of ophthalmologists 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. Ivan Jisoo Lee billed Medicare for 64 services in 2024
CMS data shows 64 Medicare services from Dr. Lee across 3 procedure codes in 2024, for 89 Medicare patients. Medicare paid $2,519 for them. Every service was in an office.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 112024: 30173%
- Office and hospital visits
- 2023: 02024: 20
- Surgery
- 2023: 02024: 14
Dr. Lee compared with the California median for ophthalmologists, 2024
- Dr. Lee
- California median
- Medicare services
- 64vs 1,07994% below
- Medicare patients
- 89vs 42179% below
- Part D claims
- 428vs 61831% below
Medians across 2,568 ophthalmologists 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ivan Jisoo Lee treated 89 Medicare patients in 2024, average age 73
CMS counts 89 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 72, with 56% 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
- Women4247%
- Men4753%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Diabetes31%
- Chronic kidney disease29%
- Mood disorders27%
- Depression26%
- Ischemic heart disease26%
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 72
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ivan Jisoo Lee wrote 507 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 507 Medicare Part D claims for 206 patients. 68% of them were for generic drugs. CMS names the drug for 428 of them, across 10 drugs with 11 or more claims each, at $7,456 in total drug cost. In 2023, CMS named 451 claims across 8 drugs.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic346 claims68%
- Brand-name161 claims32%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4512024: 4285%
Drugs named by CMS: 10 in 2024, 8 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. Ivan Jisoo 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. Ivan Jisoo Lee received $2,460 in industry payments from 2020 to 2025
CMS Open Payments shows 27 general payments to Dr. Lee from 11 drug and device companies from 2020 to 2025. Travel and lodging make up the largest share, 55% of the total. Alcon Laboratories Inc paid the most, $1,632.
General payments to Dr. Lee by program year, 2020 to 2025
General payments to Dr. Lee by kind, 2020 to 2025
- Travel and lodging$1,36155%
- Food and beverage$99841%
- Education$1004%
Companies that paid Dr. Lee the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ivan Jisoo Lee graduated from Oakland Univ, William Beaumont School of Medicine
Dr. Lee graduated from Oakland Univ, William Beaumont School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ivan Jisoo 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. Ivan Jisoo 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. Ivan Jisoo Lee's NPI number?
Dr. Ivan Jisoo Lee's NPI number is 1942769831. It was assigned on March 19, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Ivan Jisoo Lee?
Dr. Ivan Jisoo Lee is an ophthalmologist in Fullerton, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ivan Jisoo Lee practice?
Dr. Lee practices at 301 W Bastanchury Rd, Fullerton, CA 92835. Dr. Lee's primary practice is Fullerton Clinical and Surgical Facility in Fullerton, California. Dmand AI also links Dr. Lee to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Ivan Jisoo Lee's office phone number?
The practice phone on file for Dr. Lee is (949) 706-2887.
What is Dr. Ivan Jisoo Lee's medical license number?
Dr. Lee holds Ohio license 35.147835.
Which hospitals is Dr. Ivan Jisoo Lee affiliated with?
Dr. Lee is affiliated with Providence St. Jude Medical Center. Dmand AI links Dr. Lee to 1 more hospital.
Does Dr. Ivan Jisoo Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 64 services in 2024, and Dr. Lee accepts Medicare assignment.
How many Medicare patients does Dr. Ivan Jisoo Lee see?
CMS counts 89 Medicare patients who saw Dr. Lee in 2024, with an average age of 73.
What services does Dr. Ivan Jisoo Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were eye exam or test (92134), office visit, established patient (99213) and surgery: eye (67028).
Where did Dr. Ivan Jisoo Lee go to medical school?
Dr. Lee graduated from Oakland Univ, William Beaumont School of Medicine in 2019.
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What drugs does Dr. Ivan Jisoo Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Prednisolone Acetate, Ofloxacin and Dorzolamide-Timolol.
Has Dr. Ivan Jisoo Lee received payments from drug or device companies?
CMS Open Payments shows $2,460 in general payments to Dr. Lee from 11 companies from 2020 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Ivan Jisoo Lee been practicing?
Dr. Lee graduated from medical school in 2019, 7 years ago.
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