Hsiu-Ying Tseng, D.O.
NPI 1689683831 · Internal Medicine Physician · Rowland Heights, CA
Hsiu-Ying Tseng, D.O. is a Internal Medicine Physician provider in Rowland Heights, CA (NPI 1689683831).
Provider details
- NPI number
- 1689683831
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A7116 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Hsiu-Ying Tseng's NPI number?
- Hsiu-Ying Tseng's National Provider Identifier (NPI) is 1689683831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hsiu-Ying Tseng's specialty?
- Hsiu-Ying Tseng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hsiu-Ying Tseng located?
- Hsiu-Ying Tseng's practice location on file with NPPES is 1330 Fullerton Rd Ste 288, Rowland Heights, CA 91748-1246.
- What is Hsiu-Ying Tseng's phone number?
- The practice phone number listed in the NPPES registry for Hsiu-Ying Tseng is (626) 965-1233.
- Is Hsiu-Ying Tseng's NPI active?
- Yes — Hsiu-Ying Tseng's NPI (1689683831) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.