James Warren, M.D.
NPI 1134160393 · Vascular & Interventional Radiology Physician · Chico, CA
James Warren, M.D. is a Vascular & Interventional Radiology Physician provider in Chico, CA (NPI 1134160393).
Provider details
- NPI number
- 1134160393
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- RHL145010 (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
- 2006-06-09
- Last updated
- 2023-03-07
Frequently asked questions
- What is James Warren's NPI number?
- James Warren's National Provider Identifier (NPI) is 1134160393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Warren's specialty?
- James Warren is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Warren located?
- James Warren's practice location on file with NPPES is 1702 Esplanade, Chico, CA 95926-3315.
- What is James Warren's phone number?
- The practice phone number listed in the NPPES registry for James Warren is (530) 898-0500.
- Is James Warren's NPI active?
- Yes — James Warren's NPI (1134160393) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.