IndividualActive
Derek Dwinell, PHARM. D.
NPI 1629146378 · Pharmacist · Walnut Creek, CA
Derek Dwinell, PHARM. D. is a Pharmacist provider in Walnut Creek, CA (NPI 1629146378).
Provider details
- NPI number
- 1629146378
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 52953 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(90/100 index)
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
1425 S Main St
Walnut Creek, CA 94596-5318
Phone: (925) 295-4463
Street-level locationGet directions
Mailing address
316 Violetta Ct
San Ramon, CA 94582-5812
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Derek Dwinell's NPI number?
- Derek Dwinell's National Provider Identifier (NPI) is 1629146378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Dwinell's specialty?
- Derek Dwinell is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Derek Dwinell located?
- Derek Dwinell's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Derek Dwinell's phone number?
- The practice phone number listed in the NPPES registry for Derek Dwinell is (925) 295-4463.
- Is Derek Dwinell's NPI active?
- Yes — Derek Dwinell's NPI (1629146378) 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.