Chieh Tsai, M.D.
NPI 1497753024 · Obstetrics & Gynecology Physician · Merced, CA
Chieh Tsai, M.D. is a Obstetrics & Gynecology Physician provider in Merced, CA (NPI 1497753024).
Provider details
- NPI number
- 1497753024
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A337740 (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
20 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
- 2005-07-08
- Last updated
- 2015-07-08
Frequently asked questions
- What is Chieh Tsai's NPI number?
- Chieh Tsai's National Provider Identifier (NPI) is 1497753024, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chieh Tsai's specialty?
- Chieh Tsai is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Chieh Tsai located?
- Chieh Tsai's practice location on file with NPPES is 700 W Olive Ave, Merced, CA 95348-2435.
- What is Chieh Tsai's phone number?
- The practice phone number listed in the NPPES registry for Chieh Tsai is (209) 383-1343.
- Is Chieh Tsai's NPI active?
- Yes — Chieh Tsai's NPI (1497753024) is active in the NPPES registry as of the last update on 2015-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.