Stephen Landaker, MD
NPI 1720057557 · Orthopaedic Surgery Physician · Chico, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Landaker, MD is a Orthopaedic Surgery Physician provider in Chico, CA (NPI 1720057557).
Provider details
- NPI number
- 1720057557
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G41126 (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
20 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
- 2006-03-15
- Last updated
- 2014-01-30
Frequently asked questions
- What is Stephen Landaker's NPI number?
- Stephen Landaker's National Provider Identifier (NPI) is 1720057557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Landaker's specialty?
- Stephen Landaker is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Landaker located?
- Stephen Landaker's practice location on file with NPPES is 131 Raley Blvd, Chico, CA 95928-8347.
- What is Stephen Landaker's phone number?
- The practice phone number listed in the NPPES registry for Stephen Landaker is (530) 897-4500.
- Does Stephen Landaker accept Medicare?
- Stephen Landaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Landaker's NPI active?
- Yes — Stephen Landaker's NPI (1720057557) is active in the NPPES registry as of the last update on 2014-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.