Doctor profile · Federal record
Dr. Diane Tan, PA-C
Physician Assistant · West Covina, CA
- NPI 1699144618
- MIPS 86.3 / 100 · 2023
- 11 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1115 S Sunset Ave
West Covina, CA 917903940
(626) 962-4011 - Mailing address
-
11625 Cantlay St
North Hollywood, CA 916053941
Credentials & registration
- NPI registered
- September 2015 — 11 yrs on file
- Profile last updated
- January 11, 2016
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #52826
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699144618. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
179
Distinct HCPCS
3
Medicare allowed
$23,863
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 88 | 84 | $107 | |
99285 |
Emergency department visit with high level of medical decision making | 80 | 80 | $155 | |
99291 |
Critical care, first 30-74 minutes | 11 | 11 | $190 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 52. This provider delivers 3.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
127
Patients
126
Total drug cost
$1,191
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ibuprofen | Generic | 27 | 27 | $99 |
| Cephalexin | Generic | 25 | 25 | $270 |
| Ondansetron Odt (Ondansetron) | Brand | 16 | 16 | $153 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 14 | 14 | $36 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 12 | 11 | $195 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 11 | 11 | $331 |
| Methylprednisolone | Generic | 11 | 11 | $71 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 11 | 11 | $36 |
Frequently asked questions
What is Dr. Diane Tan's medical specialty?
Dr. Diane Tan practices Physician Assistant in West Covina, CA.
Where does Dr. Diane Tan practice?
Dr. Diane Tan practices at 1115 S Sunset Ave, West Covina, CA 917903940. Office phone: 6269624011.
What is Dr. Diane Tan's NPI?
Dr. Diane Tan's National Provider Identifier (NPI) is 1699144618, issued by NPPES.
What procedures does Dr. Diane Tan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.