LILY GEM HWANG (MD) – Allergy & Immunology Physician, NPI 1669648986
Allergy & Immunology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
137 ALLERGY/IMMUNOLOGY in GA
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Provider Addresses for LILY GEM HWANG (MD)
114 TOWNPARK DR NW
SUITE 240
KENNESAW, GA 301443715
Phone: (770) 952-8612
Fax: (678) 803-6944
Type: Mailing
Hembree Road, Roswell, Fulton, Georgia, 30076, United States
ROSWELL, GA 300765710
Phone: (770) 953-3331
Fax: (770) 751-8421
Type: Location
600 Professional Dr Ste 210
Lawrenceville, GA 300467650
Phone: (770) 995-1537
Fax: (770) 822-2940
Type: Location
5000 RIVERVIEW RD
SANDY SPRINGS, GA 303274238
Phone: (312) 952-7720
Fax: (678) 803-6944
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 157 Open Payments records for all available years, with a total value of $44,839.
Total Amount is formed as General ($44,839) + Research ($0) + Ownership ($0) = $44,839.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($35,476).
Total Amount
$44,839
General + Research + Ownership
Payments
157
Total payment records
General Amount
$44,839
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $35,476 |
| Genentech, Inc. | $4,125 |
| Grifols USA, LLC | $2,620 |
| GENZYME CORPORATION | $577 |
| Takeda Pharmaceuticals U.S.A., Inc. | $283 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-08-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090824000085 | I | Allergy/Immunology | GA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J2357 | Injection, omalizumab, 5 mg | 4,335 | 11 | $0 |
| 95004 | Test for allergy using allergenic extract | 1,042 | 20 | $0 |
| 95117 | Professional service for multiple injections of allergen | 669 | 57 | $0 |
| 95115 | Professional service for single injection of allergen | 227 | 17 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 213 | 26 | $0 |
Insurance plans in this area (ZIP 30144)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | GA | 95117 | Injection of incremental dosages of allergen, 2 or more injections | 662 | 55 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| A L L E R G Y/ I M M U N O L O G Y | IL | |
| Pediatric Medicine, Allergy/Immunology | GA | |
| A L L E R G Y/ I M M U N O L O G Y | GA | |
| A L L E R G Y/ I M M U N O L O G Y | GA | |
| A L L E R G Y/ I M M U N O L O G Y | GA | |
| Nurse Practitioner | GA | |
| A L L E R G Y/ I M M U N O L O G Y | NJ | |
| - | GA | |
| A L L E R G Y/ I M M U N O L O G Y | GA | |
| A L L E R G Y/ I M M U N O L O G Y | GA |
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