IndividualActive
David Alfon
NPI 1558106336 · Registered Nurse · San Francisco, CA
David Alfon is a Registered Nurse provider in San Francisco, CA (NPI 1558106336).
Provider details
- NPI number
- 1558106336
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 674422 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
1600 Divisadero St
San Francisco, CA 94143-3010
Phone: (310) 739-8916
Street-level locationGet directions
Mailing address
1600 Divisadero St
San Francisco, CA 94143-3010
Registry dates
- Enumerated
- 2024-06-25
- Last updated
- 2024-06-25
- Certified
- 2024-06-25
Frequently asked questions
- What is David Alfon's NPI number?
- David Alfon's National Provider Identifier (NPI) is 1558106336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Alfon's specialty?
- David Alfon is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is David Alfon located?
- David Alfon's practice location on file with NPPES is 1600 Divisadero St, San Francisco, CA 94143-3010.
- What is David Alfon's phone number?
- The practice phone number listed in the NPPES registry for David Alfon is (310) 739-8916.
- Is David Alfon's NPI active?
- Yes — David Alfon's NPI (1558106336) is active in the NPPES registry as of the last update on 2024-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.