Doctor profile · Federal record
Dr. Christepher Yao, MD, MPH
Emergency Medicine Physician (CMS: Emergency Medicine) · Orange, CA
- NPI 1649237637
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1010 W la Veta Ave, Suite 755
Orange, CA 928684300
(714) 543-8911
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- March 8, 2013
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A94000
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649237637. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
377
Distinct HCPCS
6
Medicare allowed
$59,358
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 86 | 86 | $226 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 77 | 76 | $186 | |
99285 |
Emergency department visit with high level of medical decision making | 74 | 74 | $184 | |
99284 |
Emergency department visit with moderate level of medical decision making | 68 | 65 | $127 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 51 | 48 | $9 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 21 | 21 | $139 |
In context: peer comparison
Among 51 peers in Orange Emergency Medicine Physician, average services per provider: 60. This provider delivers 6.3× the peer median.Open Payments
Industry payments received
All-time total
$145
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 1 | $144.98 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
180
Patients
178
Total drug cost
$1,472
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 46 | 45 | $700 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 20 | 19 | $58 |
| Ondansetron Odt (Ondansetron) | Brand | 20 | 20 | $172 |
| Tramadol Hcl | Generic | 18 | 18 | $36 |
| Ondansetron Hcl | Generic | 14 | 14 | $78 |
| Doxycycline Hyclate | Generic | 13 | 13 | $181 |
| Famotidine | Generic | 13 | 13 | $70 |
| Prednisone | Generic | 13 | 13 | $19 |
| Omeprazole | Generic | 12 | 12 | $75 |
| Ciprofloxacin Hcl | Generic | 11 | 11 | $83 |
Hospital affiliations
Frequently asked questions
What is Dr. Christepher Yao's medical specialty?
Dr. Christepher Yao practices Emergency Medicine Physician in Orange, CA.
Where does Dr. Christepher Yao practice?
Dr. Christepher Yao practices at 1010 W la Veta Ave, Orange, CA 928684300. Office phone: 7145438911.
What is Dr. Christepher Yao's NPI?
Dr. Christepher Yao's National Provider Identifier (NPI) is 1649237637, issued by NPPES.
Does Dr. Christepher Yao accept Medicare assignment?
Yes. Dr. Christepher Yao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christepher Yao commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.