Provider Profile
Based in San Carlos, CA, Jefferson Wen is listed in the NPI registry under internal medicine. Jefferson graduated from Temple University School of Medicine in 2017. Medicare claims data shows Jefferson provided 559 services to 451 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
301 INDUSTRIAL RD
San Carlos, CA 94070
2351 Clay St Suite 380
San Francisco, CA 94115
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
559 services · 451 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Influenza vaccine, inactivated | Treatment | 90653 |
18 | Less often than most peers in Internal Medicine |
| Sarscov2 vac 50 mcg/0.5ml im | Treatment | 91322 |
13 | Less often than most peers in Internal Medicine |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
13 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
141 | As often as other peers in Internal Medicine |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
92 | As often as other peers in Internal Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
92 | As often as other peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
86 | As often as other peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
70 | More often than most peers in Internal Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
21 | Less often than most peers in Internal Medicine |
| Administration of pneumococcal vaccine | Billing code | G0009 |
13 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Jefferson Wen is an internist in San Carlos, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Jefferson Wen is listed at 301 Industrial Rd, San Carlos, CA 94070. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (650) 596-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Jefferson Wen's National Provider Identifier is 1851825087. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Jefferson Wen attended Temple University School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
Jefferson Wen has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Jefferson Wen provides treatments such as influenza vaccine, inactivated and sarscov2 vac 50 mcg/0.5ml im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Jefferson Wen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.