IndividualActive
Esther Alonso Rosario, MD
NPI 1912190299 · General Practice Physician · Downey, CA
Esther Alonso Rosario, MD is a General Practice Physician provider in Downey, CA (NPI 1912190299).
Provider details
- NPI number
- 1912190299
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 006641 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
7343 Hannon St
Downey, CA 90240
Phone: (562) 927-0789
Street-level locationGet directions
Mailing address
7343 Hannon St
Downey, CA 90240
Registry dates
- Enumerated
- 2007-08-21
- Last updated
- 2007-08-21
Frequently asked questions
- What is Esther Alonso Rosario's NPI number?
- Esther Alonso Rosario's National Provider Identifier (NPI) is 1912190299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Esther Alonso Rosario's specialty?
- Esther Alonso Rosario is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Esther Alonso Rosario located?
- Esther Alonso Rosario's practice location on file with NPPES is 7343 Hannon St, Downey, CA 90240.
- What is Esther Alonso Rosario's phone number?
- The practice phone number listed in the NPPES registry for Esther Alonso Rosario is (562) 927-0789.
- Is Esther Alonso Rosario's NPI active?
- Yes — Esther Alonso Rosario's NPI (1912190299) is active in the NPPES registry as of the last update on 2007-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.