Doctor profile · Federal record
Dr. Shannon Byrnes, PA-C
Physician Assistant · Medical Physician Assistant · Stanford, CA
- NPI 1942827092
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000 - Additional location
-
1960 McNair St
East Palo Alto, CA 943032544
(240) 298-9552
Credentials & registration
- NPI registered
- July 2020 — 6 yrs on file
- Profile last updated
- December 23, 2025
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #59536
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942827092. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
136
Distinct HCPCS
1
Medicare allowed
$18,867
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 136 | 78 | $139 |
In context: peer comparison
Among 89 peers in this city , average services per provider: 64. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$113
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 1 | $86.48 | |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 1 | $26.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
456
Patients
121
Total drug cost
$46,278
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 75 | 31 | $989 |
| Rosuvastatin Calcium | Generic | 69 | 23 | $1,347 |
| Metoprolol Succinate | Generic | 40 | 12 | $670 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 35 | 14 | $782 |
| Amlodipine Besylate | Generic | 34 | 13 | $280 |
| Losartan Potassium | Generic | 32 | 11 | $400 |
| Nitroglycerin | Generic | 32 | 17 | $525 |
| Hydrochlorothiazide | Generic | 30 | 0 | $246 |
| Repatha Sureclick (Evolocumab) | Brand | 25 | 0 | $37,214 |
| Carvedilol | Generic | 22 | 0 | $334 |
Hospital affiliations
Frequently asked questions
What is Dr. Shannon Byrnes's medical specialty?
Dr. Shannon Byrnes practices Physician Assistant in Stanford, CA.
Where does Dr. Shannon Byrnes practice?
Dr. Shannon Byrnes practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Shannon Byrnes's NPI?
Dr. Shannon Byrnes's National Provider Identifier (NPI) is 1942827092, issued by NPPES.
Does Dr. Shannon Byrnes accept Medicare assignment?
Yes. Dr. Shannon Byrnes accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shannon Byrnes commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.