Cornerstone Primary Care, PLLC
NPI 1841681707 · Health Service Clinic/Center · Renton, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cornerstone Primary Care, PLLC is a Health Service Clinic/Center organization in Renton, WA (NPI 1841681707).
Provider details
- NPI number
- 1841681707
- Entity type
- Organization
- Primary specialty
- Health Service Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- John Mayeno, Member(425) 255-9310
- License
- MD 00023599 (WA)
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
- 2015-02-13
- Last updated
- 2015-12-30
Frequently asked questions
- What is Cornerstone Primary Care, PLLC's NPI number?
- Cornerstone Primary Care, PLLC's National Provider Identifier (NPI) is 1841681707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Cornerstone Primary Care, PLLC?
- Cornerstone Primary Care, PLLC is classified in the NPPES registry as Health Service Clinic/Center (Ambulatory Health Care Facilities).
- Where is Cornerstone Primary Care, PLLC located?
- Cornerstone Primary Care, PLLC's practice location on file with NPPES is 17900 Talbot Rd S Ste 102, Renton, WA 98055-8212.
- What is Cornerstone Primary Care, PLLC's phone number?
- The practice phone number listed in the NPPES registry for Cornerstone Primary Care, PLLC is (425) 255-9310.
- Does Cornerstone Primary Care, PLLC accept Medicare?
- Cornerstone Primary Care, PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Cornerstone Primary Care, PLLC?
- The authorized official listed on Cornerstone Primary Care, PLLC's NPPES record is John Mayeno, Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Cornerstone Primary Care, PLLC's NPI active?
- Yes — Cornerstone Primary Care, PLLC's NPI (1841681707) is active in the NPPES registry as of the last update on 2015-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.