LESLIE CREBASSA
NPI 1578839239
Emergency Medicine in Fresno, CA
About Leslie Crebassa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LESLIE CREBASSA (NPI 1578839239) is an individual emergency medicine provider in Fresno, California, licensed in California (131143) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leslie Crebassa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Leslie Crebassa reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 181 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 155 clinicians in this Medicare group
Sonoma, CA 95476
- Reassigned Medicare billing, California enrollment
- 112 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FRESNO, CA 93701
FRESNO, CA 93701
FRESNO, CA 93701
FRESNO, CA 93701
FRESNO, CA 93701
FRESNO, CA 93701
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Leslie Crebassa's NPI number?
The NPI number for Leslie Crebassa is 1578839239. It was assigned to this individual provider in the NPPES registry on March 28, 2012.
Where is Leslie Crebassa located?
Leslie Crebassa practices at 155 N Fresno St, Fresno, CA 93701. The listed phone number is (559) 499-6440.
What is Leslie Crebassa's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Leslie Crebassa enrolled in Medicare?
Yes. Leslie Crebassa is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Leslie Crebassa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Crebassa reassigns Medicare benefits to 5 organizations: Cep America - California (Fresno, CA), Saint Agnes Medical Center (Fresno, CA), Permanente Medical Group Inc (Stockton, CA), San Francisco Emergency Medical Associates (San Francisco, CA) and Sonoma Valley Emergency Physicians Medical Group, Inc (Sonoma, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leslie Crebassa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Leslie Crebassa was last updated on December 28, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Leslie Crebassa · NPI 1578839239
Emergency Medicine physician in Fresno, California. Individual provider, active in the CMS NPPES registry since March 28, 2012.
## Identity
- **NPI:** 1578839239 (Entity type: Individual)
- **Enumerated:** March 28, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 131143 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 155 N FRESNO ST, Fresno, CA 93701-2302
- **Phone:** (559) 499-6440
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Cep America - California (NPI 1396172615, Fresno, CA); Saint Agnes Medical Center (NPI 1205845567, Fresno, CA); Permanente Medical Group Inc (NPI 1548343510, Stockton, CA); San Francisco Emergency Medical Associates (NPI 1134110661, San Francisco, CA); Sonoma Valley Emergency Physicians Medical Group, Inc (NPI 1710164629, Sonoma, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 28, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1578839239) · Data from the CMS NPPES public registry.