Quick answers
- Does Sang Gil Lee accept Medicare assignment?
- Yes. Medicare's clinician data says Sang Gil 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 Sang Gil Lee see?
- In 2024, CMS data shows 320 Original Medicare patients and 1,125 services for Sang Gil Lee. This counts Original Medicare only and measures volume, not quality.
- What is Sang Gil Lee's NPI number?
- 1649270810. 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 Sang Gil 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 | 320 |
|---|---|
| Services billed to Medicare | 1,125 |
| Different services or procedures | 89 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)236 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)149 services
- Injection into tendon or ligament (20550)123 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)68 services
- X-ray of wrist, minimum of 3 views (73110)65 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).
- Arthritis74%
- High cholesterol73%
- High blood pressure66%
- Ischemic heart disease27%
- Anxiety25%
- Osteoporosis25%
Hospitals where Sang Gil Lee works
Medicare's Facility Affiliation Data lists Sang Gil Lee at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220071
Practice locations
Addresses where Sang Gil Lee is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Hawthorne PlBoston, MA 02114
- 1 Hawthorne Pl, Suite 105Boston, MA 02114 (617) 726‑1344
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649270810 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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