Wesley Tsai, MD
NPI 1750455077 · Hospitalist Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wesley Tsai, MD is a Hospitalist Physician provider in Vallejo, CA (NPI 1750455077).
Provider details
- NPI number
- 1750455077
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A84962 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 349 | 121 |
| Levothyroxine Sodium | 211 | 72 |
| Amlodipine Besylate | 210 | 73 |
| Tamsulosin Hcl | 163 | 55 |
| Lisinopril | 146 | 54 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 130 | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2021-12-13
Frequently asked questions
- What is Wesley Tsai's NPI number?
- Wesley Tsai's National Provider Identifier (NPI) is 1750455077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wesley Tsai's specialty?
- Wesley Tsai is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Wesley Tsai located?
- Wesley Tsai's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is Wesley Tsai's phone number?
- The practice phone number listed in the NPPES registry for Wesley Tsai is (707) 651-1000.
- Does Wesley Tsai accept Medicare?
- Wesley Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wesley Tsai's NPI active?
- Yes — Wesley Tsai's NPI (1750455077) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.