Quick answers
- Does Lily G. Hwang accept Medicare assignment?
- Yes. Medicare's clinician data says Lily G. Hwang 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 Lily G. Hwang see?
- In 2024, CMS data shows 165 Original Medicare patients and 20,547 services for Lily G. Hwang. This counts Original Medicare only and measures volume, not quality.
- What is Lily G. Hwang's NPI number?
- 1669648986. 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 Lily G. Hwang, 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 | 165 |
|---|---|
| Services billed to Medicare | 20,547 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Test for allergy using allergenic extract (95004)1,300 services
- Professional service for multiple injections of allergen (95117)773 services
- Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes (99458)238 services
- Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (96401)206 services
- Professional service for single injection of allergen (95115)176 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 cholesterol75%
- High blood pressure61%
- Arthritis55%
- Asthma52%
- Anxiety24%
- Diabetes20%
Hospitals where Lily G. Hwang works
Medicare's Facility Affiliation Data lists Lily G. Hwang 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.
- Northside Hospital GwinnettLawrenceville, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110087
Practice locations
Addresses where Lily G. Hwang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1357 Hembree Rd, Suite 200Roswell, GA 30076 (770) 475‑0807
- 600 Professional Dr, Suite 210Lawrenceville, GA 30046 (770) 995‑1537
Group practices
Medicare enrollment lists Lily G. Hwang as a member of this group (CMS data updated October 2, 2026).
- Atlanta Allergy and Asthma Clinic PA37 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Roswell
Clinicians with the same Medicare primary specialty in Roswell, GA — not a recommendation.
Other clinicians in Atlanta Allergy and Asthma Clinic PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669648986 |
| 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