DR. LINA BISSAR M.D.
NPI 1821542929
Hospitalist in Orange, CA
About Dr. Lina Bissar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LINA BISSAR M.D. (NPI 1821542929) is an individual hospitalist provider in Orange, California, licensed in California (G80200) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Newport Beach, and is a graduate of University Of California, Irvine, California College Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Lina Bissar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Lina Bissar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 250 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 92868 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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Lina Bissar's NPI number?
The NPI number for Lina Bissar is 1821542929. It was assigned to this individual provider in the NPPES registry on August 8, 2016.
Where is Lina Bissar located?
Lina Bissar practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 880-7812.
What is Lina Bissar's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Lina Bissar enrolled in Medicare?
Yes. Lina Bissar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Lina Bissar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lina Bissar reassigns Medicare benefits to The Regents Of The University Of California-Irvine (Orange, CA). The 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 Lina Bissar'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 Lina Bissar was last updated on July 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Lina Bissar, M.D. · NPI 1821542929
Hospitalist physician in Orange, California. Individual provider, active in the CMS NPPES registry since August 8, 2016.
## Identity
- **NPI:** 1821542929 (Entity type: Individual)
- **Enumerated:** August 8, 2016
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** G80200 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 880-7812
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 1993
## Record status
- **NPPES last updated:** July 24, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1821542929) · Data from the CMS NPPES public registry.