DR. LUIGI DI STEFANO M.D.
NPI 1942332515
Emergency Medicine in Stanford, CA
About Dr. Luigi Di Stefano M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LUIGI DI STEFANO M.D. (NPI 1942332515) is an individual emergency medicine provider in Stanford, California, licensed in California (A101791) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Luigi Di Stefano M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Luigi Di Stefano reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 163 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 64 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 169 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 100 clinicians in this Medicare group
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 86 clinicians in this Medicare group
Laguna Beach, CA 92651
- Reassigned Medicare billing, California enrollment
- 110 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Luigi Di Stefano's NPI number?
The NPI number for Luigi Di Stefano is 1942332515. It was assigned to this individual provider in the NPPES registry on March 9, 2007.
Where is Luigi Di Stefano located?
Luigi Di Stefano practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-9215.
What is Luigi Di Stefano's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Luigi Di Stefano enrolled in Medicare?
Yes. Luigi Di Stefano is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Luigi Di Stefano's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Luigi Di Stefano reassigns Medicare benefits to 6 organizations: Grand Avenue Emergency Physicians Medical Group Inc (Bakersfield, CA), Hmh Emergency Medical Group, Inc. (Pasadena, CA), Golden State Emergency Physicians Inc (Los Angeles, CA), Victory Emergency Physicians Medical Group Inc (Los Angeles, CA), Mission Viejo Emergency Medical Associates (Mission Viejo, CA) and 1 more organization, listed in the Medicare section above. 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 Luigi Di Stefano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Luigi Di Stefano accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Luigi Di Stefano as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Luigi Di Stefano was last updated on September 22, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Luigi Di Stefano, M.D. · NPI 1942332515
Emergency Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 9, 2007.
## Identity
- **NPI:** 1942332515 (Entity type: Individual)
- **Enumerated:** March 9, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A101791 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-9215 · **Fax:** (650) 723-0121
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Grand Avenue Emergency Physicians Medical Group Inc (NPI 1962913632, Bakersfield, CA); Hmh Emergency Medical Group, Inc. (NPI 1659383024, Pasadena, CA); Golden State Emergency Physicians Inc (NPI 1770886558, Los Angeles, CA); Victory Emergency Physicians Medical Group Inc (NPI 1932402716, Los Angeles, CA); Mission Viejo Emergency Medical Associates (NPI 1073542916, Mission Viejo, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 22, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1942332515) · Data from the CMS NPPES public registry.