DR. ER-KAI GAO (M.D.) – Neurological Surgery Physician, NPI 1710064944
Neurological Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,479 NEUROLOGY in CA
Provider Addresses for DR. ER-KAI GAO (M.D.)
8851 CENTER DR STE 603
LA MESA, CA 919423063
Phone: (619) 667-4545
Fax: (619) 667-4550
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 351 Open Payments records for all available years, with a total value of $11,003.
Total Amount is formed as General ($11,003) + Research ($0) + Ownership ($0) = $11,003.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: UCB, Inc. ($1,995).
Total Amount
$11,003
General + Research + Ownership
Payments
351
Total payment records
General Amount
$11,003
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $1,995 |
| ABBVIE INC. | $708 |
| MDD US Operations, LLC | $379 |
| Alexion Pharmaceuticals, Inc. | $343 |
| Alnylam Pharmaceuticals Inc. | $335 |
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: 2004-06-12
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 |
|---|---|---|---|---|
| I20040612000502 | I | Neurology | CA | 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 |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 1,744 | 366 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 952 | 317 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 440 | 217 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 300 | 300 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 188 | 23 | $0 |
Insurance plans in this area (ZIP 91942)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | CA | 95819 | Measurement and recording of brain wave (EEG) activity, awake and asleep | 77 | 65 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | CA |
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