James Derum, PA-C
NPI 1447355474 · Physician Assistant · Walnut Creek, CA
James Derum, PA-C is a Physician Assistant provider in Walnut Creek, CA (NPI 1447355474).
Provider details
- NPI number
- 1447355474
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA16110 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2006-09-14
- Last updated
- 2013-04-23
Frequently asked questions
- What is James Derum's NPI number?
- James Derum's National Provider Identifier (NPI) is 1447355474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Derum's specialty?
- James Derum is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Derum located?
- James Derum's practice location on file with NPPES is 1990 N California Blvd Ste 400, Walnut Creek, CA 94596-7249.
- What is James Derum's phone number?
- The practice phone number listed in the NPPES registry for James Derum is (925) 225-5837.
- Is James Derum's NPI active?
- Yes — James Derum's NPI (1447355474) is active in the NPPES registry as of the last update on 2013-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.