Ivan Lee, MD
NPI 1942769831 · Ophthalmology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ivan Lee, MD is a Ophthalmology Physician provider in Fullerton, CA (NPI 1942769831).
Provider details
- NPI number
- 1942769831
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A200827 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
64 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 30 | $23 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $63 |
| Injection of Drug Into Eye67028 | 14 | $95 |
Typical Medicare-allowed amounts for these services range $23–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 122 | 99 |
| Ofloxacin | 94 | 86 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 44 | 26 |
| Atropine Sulfate | 40 | 38 |
| Latanoprost | 37 | 21 |
| Timolol Maleate | 32 | 12 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 19 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-19
- Last updated
- 2025-12-02
- Certified
- 2025-12-02
Frequently asked questions
- What is Ivan Lee's NPI number?
- Ivan Lee's National Provider Identifier (NPI) is 1942769831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ivan Lee's specialty?
- Ivan Lee is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ivan Lee located?
- Ivan Lee's practice location on file with NPPES is 301 W Bastanchury Rd Ste 285, Fullerton, CA 92835-3432.
- What is Ivan Lee's phone number?
- The practice phone number listed in the NPPES registry for Ivan Lee is (714) 738-4620.
- Does Ivan Lee accept Medicare?
- Ivan Lee is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ivan Lee's NPI active?
- Yes — Ivan Lee's NPI (1942769831) is active in the NPPES registry as of the last update on 2025-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.