Grethel Joy Escala, MSN, BSN, RN, FNP-C
NPI 1528743697 · Nurse Practitioner · Vallejo, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grethel Joy Escala, MSN, BSN, RN, FNP-C is a Nurse Practitioner provider in Vallejo, CA (NPI 1528743697).
Provider details
- NPI number
- 1528743697
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, BSN, RN, FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95022387 (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
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 975 Sereno DrVallejo, CA 94589-2441Phone: (707) 592-7796
Registry dates
- Enumerated
- 2023-06-16
- Last updated
- 2025-09-14
- Certified
- 2025-09-14
Frequently asked questions
- What is Grethel Joy Escala's NPI number?
- Grethel Joy Escala's National Provider Identifier (NPI) is 1528743697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grethel Joy Escala's specialty?
- Grethel Joy Escala is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grethel Joy Escala located?
- Grethel Joy Escala's practice location on file with NPPES is 2200 Tuolumne St, Vallejo, CA 94589-2523.
- What is Grethel Joy Escala's phone number?
- The practice phone number listed in the NPPES registry for Grethel Joy Escala is (707) 644-7401.
- Does Grethel Joy Escala accept Medicare?
- Grethel Joy Escala is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grethel Joy Escala's NPI active?
- Yes — Grethel Joy Escala's NPI (1528743697) is active in the NPPES registry as of the last update on 2025-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.