Grzegorz Korzeniowski
NPI 1275336034 · Family Nurse Practitioner · Menifee, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grzegorz Korzeniowski is a Family Nurse Practitioner provider in Menifee, CA (NPI 1275336034).
Provider details
- NPI number
- 1275336034
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 95034365 (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
1 yr 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
- 2025-03-28
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Grzegorz Korzeniowski's NPI number?
- Grzegorz Korzeniowski's National Provider Identifier (NPI) is 1275336034, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grzegorz Korzeniowski's specialty?
- Grzegorz Korzeniowski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grzegorz Korzeniowski located?
- Grzegorz Korzeniowski's practice location on file with NPPES is 30420 Haun Rd, Menifee, CA 92584-6810.
- What is Grzegorz Korzeniowski's phone number?
- The practice phone number listed in the NPPES registry for Grzegorz Korzeniowski is (951) 676-4193.
- Does Grzegorz Korzeniowski accept Medicare?
- Grzegorz Korzeniowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grzegorz Korzeniowski's NPI active?
- Yes — Grzegorz Korzeniowski's NPI (1275336034) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.