Cornerstone Primary Care Inc
NPI 1528451523 · Primary Care Clinic/Center · Walnut Creek, CA
Cornerstone Primary Care Inc is a Primary Care Clinic/Center organization in Walnut Creek, CA (NPI 1528451523).
Provider details
- NPI number
- 1528451523
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Anthony Bernens, Coo and Cfo(925) 890-0415
- License
- FNP544411 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2015-03-15
- Last updated
- 2015-06-03
Frequently asked questions
- What is Cornerstone Primary Care Inc's NPI number?
- Cornerstone Primary Care Inc's National Provider Identifier (NPI) is 1528451523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Cornerstone Primary Care Inc?
- Cornerstone Primary Care Inc is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Cornerstone Primary Care Inc located?
- Cornerstone Primary Care Inc's practice location on file with NPPES is 112 La Casa Via, Walnut Creek, CA 94598-3091.
- What is Cornerstone Primary Care Inc's phone number?
- The practice phone number listed in the NPPES registry for Cornerstone Primary Care Inc is (925) 378-4040.
- Who is the authorized official for Cornerstone Primary Care Inc?
- The authorized official listed on Cornerstone Primary Care Inc's NPPES record is Anthony Bernens, Coo and Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Cornerstone Primary Care Inc's NPI active?
- Yes — Cornerstone Primary Care Inc's NPI (1528451523) is active in the NPPES registry as of the last update on 2015-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.