Doctor profile · Federal record
Dr. Karl Feng, MD
Emergency Medicine Physician · Fullerton, CA
- NPI 1306875190
- MIPS 75.0 / 100 · 2023
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
101 E Valencia Mesa Dr, Em Dept
Fullerton, CA 928353809
(714) 992-3965 - Mailing address
-
4401 W Memorial RD, Suite 121
Oklahoma City, OK 731341785
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- September 18, 2009
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A72088
- Medicaid
- CA #00A720880
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306875190. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,049
Distinct HCPCS
6
Medicare allowed
$133,951
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 351 | 337 | $181 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 272 | 257 | $9 | |
99284 |
Emergency department visit with moderate level of medical decision making | 186 | 182 | $124 | |
99291 |
Critical care, first 30-74 minutes | 172 | 171 | $222 | |
99292 |
Critical care, each additional 30 minutes | 54 | 49 | $111 | |
99283 |
Emergency department visit with low level of medical decision making | 14 | 14 | $74 |
In context: peer comparison
Among 4 peers in Fullerton Emergency Medicine Physician, average services per provider: 164. This provider delivers 6.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
309
Patients
307
Total drug cost
$6,298
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefpodoxime Proxetil | Generic | 93 | 93 | $5,145 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 49 | 49 | $183 |
| Ondansetron Odt (Ondansetron) | Brand | 39 | 39 | $208 |
| Azithromycin | Generic | 28 | 28 | $138 |
| Meclizine Hcl | Generic | 23 | 23 | $84 |
| Cephalexin | Generic | 21 | 20 | $180 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 17 | 16 | $151 |
| Metronidazole | Generic | 14 | 14 | $122 |
| Ciprofloxacin Hcl | Generic | 13 | 13 | $69 |
| Tramadol Hcl | Generic | 12 | 12 | $20 |
Frequently asked questions
What is Dr. Karl Feng's medical specialty?
Dr. Karl Feng practices Emergency Medicine Physician in Fullerton, CA.
Where does Dr. Karl Feng practice?
Dr. Karl Feng practices at 101 E Valencia Mesa Dr, Fullerton, CA 928353809. Office phone: 7149923965.
What is Dr. Karl Feng's NPI?
Dr. Karl Feng's National Provider Identifier (NPI) is 1306875190, issued by NPPES.
What procedures does Dr. Karl Feng commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.