Thomas Tsai, MD
NPI 1871511642 · Obstetrics & Gynecology Physician · Princeton, NJ
Thomas Tsai, MD is a Obstetrics & Gynecology Physician provider in Princeton, NJ (NPI 1871511642).
Provider details
- NPI number
- 1871511642
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25MA02747600 (NJ)
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
- 2006-07-18
- Last updated
- 2011-10-05
Frequently asked questions
- What is Thomas Tsai's NPI number?
- Thomas Tsai's National Provider Identifier (NPI) is 1871511642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Tsai's specialty?
- Thomas Tsai is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Tsai located?
- Thomas Tsai's practice location on file with NPPES is 52 Worths Mill Ln, Princeton, NJ 08540-7319.
- What is Thomas Tsai's phone number?
- The practice phone number listed in the NPPES registry for Thomas Tsai is (609) 683-9693.
- Is Thomas Tsai's NPI active?
- Yes — Thomas Tsai's NPI (1871511642) is active in the NPPES registry as of the last update on 2011-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.