Quick answers
- Does Hyok Yop Lee accept Medicare assignment?
- Yes. Medicare's clinician data says Hyok Yop 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 Hyok Yop Lee see?
- In 2024, CMS data shows 160 Original Medicare patients and 18,722 services for Hyok Yop Lee. This counts Original Medicare only and measures volume, not quality.
- What is Hyok Yop Lee's NPI number?
- 1902912249. 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 Hyok Yop 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 | 160 |
|---|---|
| Services billed to Medicare | 18,722 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Test for allergy using allergenic extract (95004)10,980 services
- Professional service for preparation and provision of 1 or more antigens (95165)3,885 services
- Professional service for multiple injections of allergen (95117)2,081 services
- Test for allergy using allergenic extract injected into skin (95024)1,075 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)483 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%
- Diabetes51%
- Arthritis47%
- Asthma31%
- Ischemic heart disease29%
Practice locations
Addresses where Hyok Yop Lee is enrolled with Medicare (CMS data updated October 2, 2026).
- 385 Sylvan AveEnglewood, NJ 07632 (201) 568‑3800
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Englewood
Clinicians with the same Medicare primary specialty in Englewood, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902912249 |
| 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