Gwendolyn Cashman, N.P.
NPI 1720057037 · Adult Health Nurse Practitioner · Walnut Creek, CA
Gwendolyn Cashman, N.P. is a Adult Health Nurse Practitioner provider in Walnut Creek, CA (NPI 1720057037).
Provider details
- NPI number
- 1720057037
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 378589 (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
- 2006-03-17
- Last updated
- 2020-02-06
- Certified
- 2020-02-06
Frequently asked questions
- What is Gwendolyn Cashman's NPI number?
- Gwendolyn Cashman's National Provider Identifier (NPI) is 1720057037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwendolyn Cashman's specialty?
- Gwendolyn Cashman is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gwendolyn Cashman located?
- Gwendolyn Cashman's practice location on file with NPPES is 130 La Casa Via # 2-208, Walnut Creek, CA 94598-3045.
- What is Gwendolyn Cashman's phone number?
- The practice phone number listed in the NPPES registry for Gwendolyn Cashman is (925) 944-0166.
- Is Gwendolyn Cashman's NPI active?
- Yes — Gwendolyn Cashman's NPI (1720057037) is active in the NPPES registry as of the last update on 2020-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.