DR. HAN TONY GAO (M.D.) – Emergency Medicine Physician, NPI 1023495330
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,050 EMERGENCY MEDICINE in TX
Provider Addresses for DR. HAN TONY GAO (M.D.)
4502 Medical Dr
San Antonio, TX 782294402
Phone: (210) 358-4000
Type: Location
4502 MEDICAL DR
SAN ANTONIO, TX 782294402
Phone: (210) 358-4000
Type: Mailing
100 KINGS HWY S
ROCHESTER, NY 146175504
Phone:
Type: Mailing
1425 PORTLAND AVE
ROCHESTER, NY 146213011
Phone: (585) 922-5067
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $16.
Total Amount is formed as General ($16) + Research ($0) + Ownership ($0) = $16.
Last reported payment date: 2023-02-16 • Largest payer in this snapshot: BrainScope Company, Inc. ($16).
Total Amount
$16
General + Research + Ownership
Payments
1
Total payment records
General Amount
$16
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BrainScope Company, Inc. | $16 |
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: 2024-09-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20180720003199 | I | Emergency Medicine | CA | TBD |
| I20200630000200 | I | Emergency Medicine | TX | TBD |
| I20240904004022 | I | Emergency Medicine | NY | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 81 | 81 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 39 | 39 | $0 |
Insurance plans in this area (ZIP 78229)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TX | |
| Internal Medicine, Hospitalist, Internal Medicine, Hospitalist | NM | |
| Nurse Practitioner | TX | |
| Emergency Medicine | TX | |
| Emergency Medicine | AZ | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Emergency Medicine | CA | |
| Emergency Medicine | OR |
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