Stephen Ludwig
NPI 1821164815 · Orthodontics and Dentofacial Orthopedics Dentistry · Concord, CA
Stephen Ludwig is a Orthodontics and Dentofacial Orthopedics Dentistry provider in Concord, CA (NPI 1821164815).
Provider details
- NPI number
- 1821164815
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 34519 (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
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Ludwig's NPI number?
- Stephen Ludwig's National Provider Identifier (NPI) is 1821164815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ludwig's specialty?
- Stephen Ludwig is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Stephen Ludwig located?
- Stephen Ludwig's practice location on file with NPPES is 1494 Washington Blvd Suite D, Concord, CA 94521.
- What is Stephen Ludwig's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ludwig is (925) 672-6200.
- Is Stephen Ludwig's NPI active?
- Yes — Stephen Ludwig's NPI (1821164815) 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.