IndividualActive
William Combi, RN
NPI 1053433490 · Registered Nurse · Greenbrae, CA
William Combi, RN is a Registered Nurse provider in Greenbrae, CA (NPI 1053433490).
Provider details
- NPI number
- 1053433490
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 418923 (CA)
Specialties & taxonomies
Nursing Service Providers
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
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
250 Bon Air Rd
Greenbrae, CA 94904-1702
Phone: (415) 499-6830
Street-level locationGet directions
Mailing address
160 Los Angeles Blvd
San Anselmo, CA 94960-1607
Registry dates
- Enumerated
- 2007-04-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Combi's NPI number?
- William Combi's National Provider Identifier (NPI) is 1053433490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Combi's specialty?
- William Combi is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is William Combi located?
- William Combi's practice location on file with NPPES is 250 Bon Air Rd, Greenbrae, CA 94904-1702.
- What is William Combi's phone number?
- The practice phone number listed in the NPPES registry for William Combi is (415) 499-6830.
- Is William Combi's NPI active?
- Yes — William Combi's NPI (1053433490) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.