James A. Willis MD Inc
NPI 1023386521 · Pain Medicine (Anesthesiology) Physician · Auburn, CA
James A. Willis MD Inc is a Pain Medicine (Anesthesiology) Physician organization in Auburn, CA (NPI 1023386521).
Provider details
- NPI number
- 1023386521
- Entity type
- Organization
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- James Willis, Owner(530) 745-9615
- License
- G37443 (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
14 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
- 2011-12-12
- Last updated
- 2014-05-15
Frequently asked questions
- What is James A. Willis MD Inc's NPI number?
- James A. Willis MD Inc's National Provider Identifier (NPI) is 1023386521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James A. Willis MD Inc?
- James A. Willis MD Inc is classified in the NPPES registry as Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is James A. Willis MD Inc located?
- James A. Willis MD Inc's practice location on file with NPPES is 11971 Heritage Oak Pl, Auburn, CA 95603-2461.
- What is James A. Willis MD Inc's phone number?
- The practice phone number listed in the NPPES registry for James A. Willis MD Inc is (530) 745-9615.
- Who is the authorized official for James A. Willis MD Inc?
- The authorized official listed on James A. Willis MD Inc's NPPES record is James Willis, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James A. Willis MD Inc's NPI active?
- Yes — James A. Willis MD Inc's NPI (1023386521) is active in the NPPES registry as of the last update on 2014-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.