Rosendo So-Rosillo, MD
NPI 1407889827 · Medical Oncology Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosendo So-Rosillo, MD is a Medical Oncology Physician provider in Mountain View, CA (NPI 1407889827).
Provider details
- NPI number
- 1407889827
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A81804 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 243 | 55 |
| Prednisone | 207 | 71 |
| Anastrozole | 77 | 25 |
| Hydroxyurea | 56 | 14 |
| Filgrastim-Aafibrand: Nivestym | 55 | 15 |
| Enzalutamidebrand: Xtandi | 50 | — |
| Dexamethasone | 39 | 30 |
| Ondansetron Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2021-12-15
Frequently asked questions
- What is Rosendo So-Rosillo's NPI number?
- Rosendo So-Rosillo's National Provider Identifier (NPI) is 1407889827, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosendo So-Rosillo's specialty?
- Rosendo So-Rosillo is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Rosendo So-Rosillo located?
- Rosendo So-Rosillo's practice location on file with NPPES is 701 E El Camino Real, Mountain View, CA 94040-2833.
- What is Rosendo So-Rosillo's phone number?
- The practice phone number listed in the NPPES registry for Rosendo So-Rosillo is (650) 934-7600.
- Does Rosendo So-Rosillo accept Medicare?
- Rosendo So-Rosillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosendo So-Rosillo's NPI active?
- Yes — Rosendo So-Rosillo's NPI (1407889827) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.