Marshal Rosario, M.D.
NPI 1770655821 · Neurological Surgery Physician · Los Altos, CA
Marshal Rosario, M.D. is a Neurological Surgery Physician provider in Los Altos, CA (NPI 1770655821).
Provider details
- NPI number
- 1770655821
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G037569 (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
- 2006-11-14
- Last updated
- 2019-03-27
Frequently asked questions
- What is Marshal Rosario's NPI number?
- Marshal Rosario's National Provider Identifier (NPI) is 1770655821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshal Rosario's specialty?
- Marshal Rosario is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Marshal Rosario located?
- Marshal Rosario's practice location on file with NPPES is 951 Berry Ave, Los Altos, CA 94024-5532.
- What is Marshal Rosario's phone number?
- The practice phone number listed in the NPPES registry for Marshal Rosario is (408) 828-7334.
- Is Marshal Rosario's NPI active?
- Yes — Marshal Rosario's NPI (1770655821) is active in the NPPES registry as of the last update on 2019-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.