Brian Buder, M.D.
NPI 1477844405 · Occupational Medicine Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Buder, M.D. is a Occupational Medicine Physician provider in Santa Ana, CA (NPI 1477844405).
Provider details
- NPI number
- 1477844405
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-04-25
- Last updated
- 2015-09-17
Frequently asked questions
- What is Brian Buder's NPI number?
- Brian Buder's National Provider Identifier (NPI) is 1477844405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Buder's specialty?
- Brian Buder is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Buder located?
- Brian Buder's practice location on file with NPPES is 800 N Tustin Ave, Santa Ana, CA 92705-3605.
- What is Brian Buder's phone number?
- The practice phone number listed in the NPPES registry for Brian Buder is (714) 245-0800.
- Does Brian Buder accept Medicare?
- Brian Buder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Buder's NPI active?
- Yes — Brian Buder's NPI (1477844405) is active in the NPPES registry as of the last update on 2015-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.