Cornerstone First Assisting
NPI 1427441492 · Surgical Physician Assistant · Lake St Louis, MO
Cornerstone First Assisting is a Surgical Physician Assistant organization in Lake St Louis, MO (NPI 1427441492).
Provider details
- NPI number
- 1427441492
- Entity type
- Organization
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Saraya Guariglia, Surgical First Assistant(636) 345-1305
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
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
- 2015-03-14
- Last updated
- 2015-03-20
Frequently asked questions
- What is Cornerstone First Assisting's NPI number?
- Cornerstone First Assisting's National Provider Identifier (NPI) is 1427441492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Cornerstone First Assisting?
- Cornerstone First Assisting is classified in the NPPES registry as Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cornerstone First Assisting located?
- Cornerstone First Assisting's practice location on file with NPPES is 267 Countryshire Dr, Lake St Louis, MO 63367-5823.
- What is Cornerstone First Assisting's phone number?
- The practice phone number listed in the NPPES registry for Cornerstone First Assisting is (636) 345-1305.
- Who is the authorized official for Cornerstone First Assisting?
- The authorized official listed on Cornerstone First Assisting's NPPES record is Saraya Guariglia, Surgical First Assistant. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Cornerstone First Assisting's NPI active?
- Yes — Cornerstone First Assisting's NPI (1427441492) is active in the NPPES registry as of the last update on 2015-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.