Rosario Santillana, MD
NPI 1558898007 · Pediatrics Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosario Santillana, MD is a Pediatrics Physician provider in Oakland, CA (NPI 1558898007).
Provider details
- NPI number
- 1558898007
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 5220 Claremont AveOakland, CA 94618-1033Phone: (510) 428-3226Fax: (510) 597-7042
Registry dates
- Enumerated
- 2017-05-16
- Last updated
- 2022-08-05
- Certified
- 2022-08-05
Frequently asked questions
- What is Rosario Santillana's NPI number?
- Rosario Santillana's National Provider Identifier (NPI) is 1558898007, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosario Santillana's specialty?
- Rosario Santillana is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Rosario Santillana located?
- Rosario Santillana's practice location on file with NPPES is 747 52nd St, Oakland, CA 94609-1809.
- What is Rosario Santillana's phone number?
- The practice phone number listed in the NPPES registry for Rosario Santillana is (510) 428-3331.
- Does Rosario Santillana accept Medicare?
- Rosario Santillana is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosario Santillana's NPI active?
- Yes — Rosario Santillana's NPI (1558898007) is active in the NPPES registry as of the last update on 2022-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.