Doctor profile · Federal record
Dr. Marian Xu, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · San Diego, CA
- NPI 1477996148
- Accepts Medicare
- MIPS 86.3 / 100 · 2023
- 15 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
200 W Arbor Dr, #8819
San Diego, CA 921039000
(619) 543-6236
Credentials & registration
- NPI registered
- April 2013 — 13 yrs on file
- Profile last updated
- June 17, 2015
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A124817
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477996148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
708
Distinct HCPCS
5
Medicare allowed
$74,806
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 319 | 308 | $177 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 291 | 265 | $8 | |
99291 |
Critical care, first 30-74 minutes | 50 | 48 | $217 | |
99284 |
Emergency department visit with moderate level of medical decision making | 30 | 30 | $122 | |
99497 |
Advance care planning, first 30 minutes | 18 | 18 | $78 |
In context: peer comparison
Among 130 peers in this city , average services per provider: 67. This provider delivers 11× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
128
Patients
128
Total drug cost
$815
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 35 | 35 | $301 |
| Ondansetron Hcl | Generic | 21 | 21 | $126 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 17 | 17 | $63 |
| Cephalexin | Generic | 15 | 15 | $141 |
| Meclizine Hcl | Generic | 15 | 15 | $52 |
| Ciprofloxacin Hcl | Generic | 13 | 13 | $107 |
| Tramadol Hcl | Generic | 12 | 12 | $25 |
Frequently asked questions
What is Dr. Marian Xu's medical specialty?
Dr. Marian Xu practices Emergency Medicine Physician in San Diego, CA.
Where does Dr. Marian Xu practice?
Dr. Marian Xu practices at 200 W Arbor Dr, San Diego, CA 921039000. Office phone: 6195436236.
What is Dr. Marian Xu's NPI?
Dr. Marian Xu's National Provider Identifier (NPI) is 1477996148, issued by NPPES.
Does Dr. Marian Xu accept Medicare assignment?
Yes. Dr. Marian Xu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marian Xu 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.