Quick answers
- Does Yong T. Lee accept Medicare assignment?
- Yes. Medicare's clinician data says Yong T. Lee accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Yong T. Lee see?
- In 2024, CMS data shows 552 Original Medicare patients and 3,780 services for Yong T. Lee. This counts Original Medicare only and measures volume, not quality.
- What is Yong T. Lee's NPI number?
- 1972607364. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Yong T. Lee, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 552 |
|---|---|
| Services billed to Medicare | 3,780 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Chemical destruction of first incompetent vein of arm or leg using imaging guidance (36482)991 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)920 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)490 services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)352 services
- New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)271 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes70%
- Arthritis60%
- Chronic kidney disease31%
- Osteoporosis30%
Practice locations
Addresses where Yong T. Lee is enrolled with Medicare (CMS data updated October 2, 2026).
- 903 Crenshaw Blvd, Suite 302Los Angeles, CA 90019 (323) 731‑0681
Specialties
- Internal Medicineprimary
- Gastroenterologyalso
Other internal medicine doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972607364 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians