DR. CHRISTEPHER DAVID YAO (MD, MPH) – Emergency Medicine Physician, NPI 1649237637
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,791 EMERGENCY MEDICINE in CA
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Provider Addresses for DR. CHRISTEPHER DAVID YAO (MD, MPH)
1010, West La Veta Avenue, Orange, Orange County, California, 92868, United States
SUITE 755
ORANGE, CA 928684300
Phone: (714) 543-8911
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 4 Open Payments records for all available years, with a total value of $623.
Total Amount is formed as General ($623) + Research ($0) + Ownership ($0) = $623.
Last reported payment date: 2024-03-20 • Largest payer in this snapshot: Inari Medical, Inc. ($465).
Total Amount
$623
General + Research + Ownership
Payments
4
Total payment records
General Amount
$623
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inari Medical, Inc. | $465 |
| Janssen Pharmaceuticals, Inc | $145 |
| PFIZER INC. | $14 |
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: 2010-12-27
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 |
|---|---|---|---|---|
| I20101227000706 | I | Emergency Medicine | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 86 | 86 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 77 | 76 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 74 | 74 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 68 | 65 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 51 | 48 | $0 |
Insurance plans in this area (ZIP 92868)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | OR | |
| Emergency Medicine | CA | |
| - | CA | |
| Emergency Medicine | MO | |
| Pediatric Medicine | MI | |
| - | CA | |
| Pediatric Medicine, Emergency Medicine | CA | |
| Emergency Medicine | CA | |
| Pediatric Medicine | CA | |
| Emergency Medicine | CA |
Reviews
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