Doctor profile · Federal record
Dr. Margaret Shyu, MD
Internal Medicine Physician (CMS: Internal Medicine) · Stanford, CA
- NPI 1851846034
- Accepts Medicare
- 6 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- August 2016 — 10 yrs on file
- Profile last updated
- April 23, 2024
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A184133
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851846034. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
154
Distinct HCPCS
4
Medicare allowed
$20,911
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 57 | 22 | $135 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 36 | 18 | $89 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 31 | 30 | $196 | |
99239 |
Hospital discharge day management, more than 30 minutes | 30 | 30 | $131 |
In context: peer comparison
Among 95 peers in Stanford Internal Medicine Physician, average services per provider: 85. This provider delivers 1.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
310
Patients
15
Total drug cost
$48,562
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 38 | 15 | $674 |
| Lisinopril | Generic | 28 | 0 | $301 |
| Metformin Hcl | Generic | 28 | 0 | $323 |
| Rosuvastatin Calcium | Generic | 25 | 0 | $410 |
| Alcohol Prep Pads (Alcohol Antiseptic Pads) | Brand | 24 | 0 | $164 |
| Duloxetine Hcl | Generic | 22 | 0 | $175 |
| Amlodipine Besylate | Generic | 20 | 0 | $73 |
| Famotidine | Generic | 19 | 0 | $278 |
| Fluticasone Propionate | Generic | 18 | 0 | $101 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 17 | 0 | $593 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Shyu's medical specialty?
Dr. Margaret Shyu practices Internal Medicine Physician in Stanford, CA.
Where does Dr. Margaret Shyu practice?
Dr. Margaret Shyu practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Margaret Shyu's NPI?
Dr. Margaret Shyu's National Provider Identifier (NPI) is 1851846034, issued by NPPES.
Does Dr. Margaret Shyu accept Medicare assignment?
Yes. Dr. Margaret Shyu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Shyu commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.