Ronald Bieselin, MD
NPI 1912009283 · Surgery Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Bieselin, MD is a Surgery Physician provider in Vallejo, CA (NPI 1912009283).
Provider details
- NPI number
- 1912009283
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G41512 (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
- 2006-09-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Bieselin's NPI number?
- Ronald Bieselin's National Provider Identifier (NPI) is 1912009283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Bieselin's specialty?
- Ronald Bieselin is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Bieselin located?
- Ronald Bieselin's practice location on file with NPPES is 480 Redwood St, Vallejo, CA 94590-2958.
- What is Ronald Bieselin's phone number?
- The practice phone number listed in the NPPES registry for Ronald Bieselin is (707) 642-2111.
- Does Ronald Bieselin accept Medicare?
- Ronald Bieselin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Bieselin's NPI active?
- Yes — Ronald Bieselin's NPI (1912009283) 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.