IndividualActive
Usha Rengarajan, MD
NPI 1053491910 · Emergency Medicine Physician · Fremont, CA
Usha Rengarajan, MD is a Emergency Medicine Physician provider in Fremont, CA (NPI 1053491910).
Provider details
- NPI number
- 1053491910
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- C185229 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
3200 Kearney St
Fremont, CA 94538-2299
Phone: (510) 490-1222
Approximate (ZIP-level) locationGet directions
Mailing address
325 Distel Cir
Los Altos, CA 94022-1408
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2023-08-01
- Certified
- 2023-08-01
Frequently asked questions
- What is Usha Rengarajan's NPI number?
- Usha Rengarajan's National Provider Identifier (NPI) is 1053491910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Usha Rengarajan's specialty?
- Usha Rengarajan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Usha Rengarajan located?
- Usha Rengarajan's practice location on file with NPPES is 3200 Kearney St, Fremont, CA 94538-2299.
- What is Usha Rengarajan's phone number?
- The practice phone number listed in the NPPES registry for Usha Rengarajan is (510) 490-1222.
- Is Usha Rengarajan's NPI active?
- Yes — Usha Rengarajan's NPI (1053491910) is active in the NPPES registry as of the last update on 2023-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.