Daniel Tseng, MD
NPI 1336228071 · Internal Medicine Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Tseng, MD is a Internal Medicine Physician provider in Santa Clara, CA (NPI 1336228071).
Provider details
- NPI number
- 1336228071
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G83271 (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 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 265 | 102 |
| Losartan Potassium | 206 | 73 |
| Levothyroxine Sodium | 168 | 58 |
| Amlodipine Besylate | 161 | 65 |
| Lisinopril | 133 | 56 |
| Tamsulosin Hcl | 100 | 36 |
| Fluticasone Propionate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-03
- Last updated
- 2021-12-13
Frequently asked questions
- What is Daniel Tseng's NPI number?
- Daniel Tseng's National Provider Identifier (NPI) is 1336228071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Tseng's specialty?
- Daniel Tseng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Tseng located?
- Daniel Tseng's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Daniel Tseng's phone number?
- The practice phone number listed in the NPPES registry for Daniel Tseng is (408) 851-1000.
- Does Daniel Tseng accept Medicare?
- Daniel Tseng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Tseng's NPI active?
- Yes — Daniel Tseng's NPI (1336228071) 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.