Ronaldo E Fermin DMD Inc
NPI 1427198043 · General Practice Dentistry · South San Francisco, CA
Ronaldo E Fermin DMD Inc is a General Practice Dentistry organization in South San Francisco, CA (NPI 1427198043).
Provider details
- NPI number
- 1427198043
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Parent organization
- Ronaldo E Fermin DMD Inc Dba Gellert Dental Office
- Organization subpart
- Yes
- Authorized official
- Alicia Fermin, Co Owner Dentist Administrator and(650) 878-1033
- License
- 35880 (CA)
Specialties & taxonomies
Dental Providers
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
Other names (DBA / former)
- Doing business as
- Gellert Dental Office
- Doing business as
- Gellert Dental Office
Registry dates
- Enumerated
- 2007-02-07
- Last updated
- 2020-07-13
- Certified
- 2020-07-13
Frequently asked questions
- What is Ronaldo E Fermin DMD Inc's NPI number?
- Ronaldo E Fermin DMD Inc's National Provider Identifier (NPI) is 1427198043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ronaldo E Fermin DMD Inc?
- Ronaldo E Fermin DMD Inc is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is Ronaldo E Fermin DMD Inc located?
- Ronaldo E Fermin DMD Inc's practice location on file with NPPES is 2400 Westborough Blvd Ste 104, South San Francisco, CA 94080-5402.
- What is Ronaldo E Fermin DMD Inc's phone number?
- The practice phone number listed in the NPPES registry for Ronaldo E Fermin DMD Inc is (650) 878-1033.
- Who is the authorized official for Ronaldo E Fermin DMD Inc?
- The authorized official listed on Ronaldo E Fermin DMD Inc's NPPES record is Alicia Fermin, Co Owner Dentist Administrator and. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ronaldo E Fermin DMD Inc's NPI active?
- Yes — Ronaldo E Fermin DMD Inc's NPI (1427198043) is active in the NPPES registry as of the last update on 2020-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.