Doctor profile · Federal record
Dr. Keith Tsang, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Pasadena, CA
- NPI 1831398759
- Accepts Medicare
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 W California Blvd
Pasadena, CA 911053010
(626) 397-5116
fax (626) 397-2981 - Mailing address
-
Po Box 1166
South Pasadena, CA 91030
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- August 1, 2022
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A116147
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831398759. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
502
Distinct HCPCS
8
Medicare allowed
$61,645
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 147 | 133 | $9 | |
99285 |
Emergency department visit with high level of medical decision making | 117 | 116 | $181 | |
99291 |
Critical care, first 30-74 minutes | 81 | 79 | $222 | |
99284 |
Emergency department visit with moderate level of medical decision making | 73 | 71 | $125 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 26 | $182 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 25 | $139 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $180 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 11 | 11 | $3 |
In context: peer comparison
Among 18 peers in this city , average services per provider: 68. This provider delivers 7.4× the peer median.Open Payments
Industry payments received
All-time total
$180
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inari Medical, Inc. | 1 | $180.14 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
141
Patients
140
Total drug cost
$1,015
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ibuprofen | Generic | 28 | 28 | $87 |
| Azithromycin | Generic | 19 | 18 | $72 |
| Ondansetron Odt (Ondansetron) | Brand | 17 | 17 | $60 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 14 | 14 | $181 |
| Cephalexin | Generic | 13 | 13 | $160 |
| Famotidine | Generic | 13 | 13 | $51 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 13 | $56 |
| Prednisone | Generic | 13 | 13 | $29 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 11 | 11 | $321 |
Frequently asked questions
What is Dr. Keith Tsang's medical specialty?
Dr. Keith Tsang practices Emergency Medicine Physician in Pasadena, CA.
Where does Dr. Keith Tsang practice?
Dr. Keith Tsang practices at 100 W California Blvd, Pasadena, CA 911053010. Office phone: 6263975116.
What is Dr. Keith Tsang's NPI?
Dr. Keith Tsang's National Provider Identifier (NPI) is 1831398759, issued by NPPES.
Does Dr. Keith Tsang accept Medicare assignment?
Yes. Dr. Keith Tsang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Tsang commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.