Tiranjan Chattha, O.D
NPI 1841342177 · Optometrist · Livermore, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiranjan Chattha, O.D is a Optometrist provider in Livermore, CA (NPI 1841342177).
Provider details
- NPI number
- 1841342177
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D
- Sex
- Female
- Sole proprietor
- No
- License
- 006803 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
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
- 2007-01-17
- Last updated
- 2022-01-03
Frequently asked questions
- What is Tiranjan Chattha's NPI number?
- Tiranjan Chattha's National Provider Identifier (NPI) is 1841342177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiranjan Chattha's specialty?
- Tiranjan Chattha is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Tiranjan Chattha located?
- Tiranjan Chattha's practice location on file with NPPES is 3000 Las Positas Rd, Livermore, CA 94551-9627.
- What is Tiranjan Chattha's phone number?
- The practice phone number listed in the NPPES registry for Tiranjan Chattha is (925) 243-2904.
- Does Tiranjan Chattha accept Medicare?
- Tiranjan Chattha is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiranjan Chattha's NPI active?
- Yes — Tiranjan Chattha's NPI (1841342177) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.