Doctor profile · Federal record
Dr. Jefferson Wen
Internal Medicine Physician (CMS: Internal Medicine) · San Carlos, CA
- NPI 1851825087
- Accepts Medicare
- 9 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
301 Industrial RD
San Carlos, CA 940702603
(650) 596-4000 - Additional location
-
2351 Clay St, Suite 380
San Francisco, CA 941151931
(415) 600-6000 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- September 21, 2020
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A160266
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851825087. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
592
Distinct HCPCS
8
Medicare allowed
$83,119
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 232 | 157 | $152 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 144 | 111 | $108 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 89 | 89 | $157 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 60 | 35 | $214 | |
G0008 |
Administration of influenza virus vaccine | 24 | 24 | $37 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 18 | 18 | $76 | |
G0009 |
Administration of pneumococcal vaccine | 14 | 14 | $35 | |
90671 |
Pneumococcal conjugate vaccine, 15 valent (pcv15), for intramuscular use | 11 | 11 | $241 |
In context: peer comparison
Among 7 peers in San Carlos Internal Medicine Physician, average services per provider: 91. This provider delivers 6.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
910
Patients
228
Total drug cost
$14,099
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 156 | 49 | $2,551 |
| Amlodipine Besylate | Generic | 106 | 32 | $863 |
| Losartan Potassium | Generic | 81 | 25 | $1,195 |
| Tamsulosin Hcl | Generic | 69 | 18 | $1,251 |
| Levothyroxine Sodium | Generic | 61 | 16 | $696 |
| Lisinopril | Generic | 60 | 18 | $736 |
| Gabapentin | Generic | 55 | 15 | $1,415 |
| Pantoprazole Sodium | Generic | 54 | 16 | $959 |
| Simvastatin | Generic | 54 | 16 | $531 |
| Escitalopram Oxalate | Generic | 47 | 0 | $590 |
Hospital affiliations
Frequently asked questions
What is Dr. Jefferson Wen's medical specialty?
Dr. Jefferson Wen practices Internal Medicine Physician in San Carlos, CA.
Where does Dr. Jefferson Wen practice?
Dr. Jefferson Wen practices at 301 Industrial RD, San Carlos, CA 940702603. Office phone: 6505964000.
What is Dr. Jefferson Wen's NPI?
Dr. Jefferson Wen's National Provider Identifier (NPI) is 1851825087, issued by NPPES.
Does Dr. Jefferson Wen accept Medicare assignment?
Yes. Dr. Jefferson Wen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jefferson Wen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.