DR. RANDALL RALPH ALESSI O.D.
NPI 1609851344
Optometrist in Laguna Hills, CA
About Dr. Randall Ralph Alessi O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RANDALL RALPH ALESSI O.D. (NPI 1609851344) is an individual optometrist in Laguna Hills, California, licensed in California (8651 TPL) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in South Hill.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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. Randall Ralph Alessi O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Randall Alessi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 85 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 113 clinicians in this Medicare group
Rancho Mirage, CA 92270
- Reassigned Medicare billing, California enrollment
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 92653 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Randall Alessi's NPI number?
The NPI number for Randall Alessi is 1609851344. It was assigned to this individual provider in the NPPES registry on December 14, 2005.
Where is Randall Alessi located?
Randall Alessi practices at 25401 Alicia Pkwy, Laguna Hills, CA 92653. The listed phone number is (949) 951-8001.
What is Randall Alessi's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Randall Alessi enrolled in Medicare?
Yes. Randall Alessi is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Randall Alessi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Randall Alessi reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (Orange, CA), Regents Of The University Of California (Orange, CA) and Rancho Mirage Optometric Family Eyecare, Inc. (Rancho Mirage, 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 Randall Alessi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Randall Alessi accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Randall Alessi 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 Randall Alessi was last updated on April 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Randall Ralph Alessi, O.D. · NPI 1609851344
Optometrist provider in Laguna Hills, California. Individual provider, active in the CMS NPPES registry since December 14, 2005.
## Identity
- **NPI:** 1609851344 (Entity type: Individual)
- **Enumerated:** December 14, 2005
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 8651 TPL (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 25401 ALICIA PKWY, Laguna Hills, CA 92653-4958
- **Phone:** (949) 951-8001
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1487602579, Orange, CA); Regents Of The University Of California (NPI 1871541953, Orange, CA); Rancho Mirage Optometric Family Eyecare, Inc. (NPI 1225645211, Rancho Mirage, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 8, 2022
- **Other identifiers:** Medicaid 2743033 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1609851344) · Data from the CMS NPPES public registry.