FIRAS ABUBAKER MD
NPI 1346255254
Internal Medicine - Infectious Disease in Corona, CA
About Firas Abubaker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FIRAS ABUBAKER MD (NPI 1346255254) is an individual infectious disease provider in Corona, California, licensed in California (A101953) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses 4
Other Identifiers 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
Firas Abubaker Md 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 Reassignments
3Medicare enrollment records show Firas Abubaker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 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 2
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 92882 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Firas Abubaker's NPI number?
The NPI number for Firas Abubaker is 1346255254. It was assigned to this individual provider in the NPPES registry on July 29, 2006.
Where is Firas Abubaker located?
Firas Abubaker practices at 160 W Foothill Pkwy Ste 105-167, Corona, CA 92882. The listed phone number is (973) 330-1940.
What is Firas Abubaker's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Firas Abubaker enrolled in Medicare?
Yes. Firas Abubaker 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 organizations bill Medicare for Firas Abubaker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Firas Abubaker reassigns Medicare benefits to 3 organizations: Firas Abubaker MD Inc (Corona, CA), First Choice Physician Partners (Anaheim, CA) and Inpatient Specialists Of California, PC (San Bernardino, 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 Firas Abubaker'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 Firas Abubaker was last updated on January 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Firas Abubaker, MD · NPI 1346255254
Infectious Disease physician in Corona, California. Individual provider, active in the CMS NPPES registry since July 29, 2006.
## Identity
- **NPI:** 1346255254 (Entity type: Individual)
- **Enumerated:** July 29, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** A101953 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 160 W FOOTHILL PKWY STE 105-167, Corona, CA 92882-8545
- **Phone:** (973) 330-1940 · **Fax:** (949) 299-0023
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Firas Abubaker MD Inc (NPI 1982016887, Corona, CA); First Choice Physician Partners (NPI 1083966691, Anaheim, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** January 19, 2023
- **Other identifiers:** Medicaid 1346255254 (VA)
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Source: [NPI Profile](https://npiprofile.com/npi/1346255254) · Data from the CMS NPPES public registry.