Ian Tong
NPI 1023043478 · Internal Medicine Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Tong is a Internal Medicine Physician provider in Palo Alto, CA (NPI 1023043478).
Provider details
- NPI number
- 1023043478
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A84913 (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
- 2006-07-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ian Tong's NPI number?
- Ian Tong's National Provider Identifier (NPI) is 1023043478, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Tong's specialty?
- Ian Tong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Tong located?
- Ian Tong's practice location on file with NPPES is 3801 Miranda Ave, Palo Alto, CA 94304-1207.
- What is Ian Tong's phone number?
- The practice phone number listed in the NPPES registry for Ian Tong is (650) 493-5000.
- Does Ian Tong accept Medicare?
- Ian Tong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Tong's NPI active?
- Yes — Ian Tong's NPI (1023043478) 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.