Neeraj Tiwari, MD
NPI 1629156112 · Internal Medicine Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Neeraj Tiwari, MD is a Internal Medicine Physician provider in Antioch, CA (NPI 1629156112).
Provider details
- NPI number
- 1629156112
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A90882 (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
- 2006-11-01
- Last updated
- 2021-12-09
Frequently asked questions
- What is Neeraj Tiwari's NPI number?
- Neeraj Tiwari's National Provider Identifier (NPI) is 1629156112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Neeraj Tiwari's specialty?
- Neeraj Tiwari is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Neeraj Tiwari located?
- Neeraj Tiwari's practice location on file with NPPES is 5601 Deer Valley Rd, Antioch, CA 94531-8577.
- What is Neeraj Tiwari's phone number?
- The practice phone number listed in the NPPES registry for Neeraj Tiwari is (925) 813-6500.
- Does Neeraj Tiwari accept Medicare?
- Neeraj Tiwari is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Neeraj Tiwari's NPI active?
- Yes — Neeraj Tiwari's NPI (1629156112) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.