Ronaldo Fermin, D.M.D
NPI 1821022898 · General Practice Dentistry · South San Francisco, CA
Ronaldo Fermin, D.M.D is a General Practice Dentistry provider in South San Francisco, CA (NPI 1821022898).
Provider details
- NPI number
- 1821022898
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35880 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2020-07-09
- Certified
- 2020-07-09
Frequently asked questions
- What is Ronaldo Fermin's NPI number?
- Ronaldo Fermin's National Provider Identifier (NPI) is 1821022898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronaldo Fermin's specialty?
- Ronaldo Fermin is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Ronaldo Fermin located?
- Ronaldo Fermin's practice location on file with NPPES is 2400 Westborough Blvd Ste 104, South San Francisco, CA 94080-5402.
- What is Ronaldo Fermin's phone number?
- The practice phone number listed in the NPPES registry for Ronaldo Fermin is (650) 878-1033.
- Is Ronaldo Fermin's NPI active?
- Yes — Ronaldo Fermin's NPI (1821022898) is active in the NPPES registry as of the last update on 2020-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.