Tong Tan
NPI 1700998358 · Internal Medicine Physician · El Monte, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tong Tan is a Internal Medicine Physician provider in El Monte, CA (NPI 1700998358).
Provider details
- NPI number
- 1700998358
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A68525 (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
- 2006-08-31
- Last updated
- 2007-07-09
Frequently asked questions
- What is Tong Tan's NPI number?
- Tong Tan's National Provider Identifier (NPI) is 1700998358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tong Tan's specialty?
- Tong Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tong Tan located?
- Tong Tan's practice location on file with NPPES is 10953 Ramona Blvd, El Monte, CA 91731-2629.
- What is Tong Tan's phone number?
- The practice phone number listed in the NPPES registry for Tong Tan is (626) 579-8463.
- Does Tong Tan accept Medicare?
- Tong Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tong Tan's NPI active?
- Yes — Tong Tan's NPI (1700998358) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.