KIA GHIASSI D.O.
NPI 1861887077
Internal Medicine - Critical Care Medicine in Laguna Hills, CA
About Kia Ghiassi D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KIA GHIASSI D.O. (NPI 1861887077) is an individual critical care medicine provider in Laguna Hills, California, licensed in California (20A15558) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Irvine, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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
Kia Ghiassi D.o. 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 Kia Ghiassi 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
- 12 clinicians in this Medicare group
Riverside, CA 92505
- Reassigned Medicare billing, California enrollment
- 114 clinicians in this Medicare group
Duarte, CA 91010
- Reassigned Medicare billing, California enrollment
- 1,335 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 6
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 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.
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 Kia Ghiassi's NPI number?
The NPI number for Kia Ghiassi is 1861887077. It was assigned to this individual provider in the NPPES registry on April 3, 2015.
Where is Kia Ghiassi located?
Kia Ghiassi practices at 24422 Avenida De La Carlota Ste 275, Laguna Hills, CA 92653. The listed phone number is (949) 354-3672.
What is Kia Ghiassi's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Kia Ghiassi enrolled in Medicare?
Yes. Kia Ghiassi 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 Kia Ghiassi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kia Ghiassi reassigns Medicare benefits to 3 organizations: Integrated Critical Care And Pulmonary Specialists Inc. (Orange, CA), El-Bershawi Medical Corp (Riverside, CA) and City Of Hope Medical Foundation (Duarte, 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 Kia Ghiassi'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 Kia Ghiassi was last updated on June 6, 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.
# Kia Ghiassi, D.O. · NPI 1861887077
Critical Care Medicine physician in Laguna Hills, California. Individual provider, active in the CMS NPPES registry since April 3, 2015.
## Identity
- **NPI:** 1861887077 (Entity type: Individual)
- **Enumerated:** April 3, 2015
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 20A15558 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 24422 AVENIDA DE LA CARLOTA STE 275, Laguna Hills, CA 92653-3669
- **Phone:** (949) 354-3672
## 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): Integrated Critical Care And Pulmonary Specialists Inc. (NPI 1902313919, Orange, CA); El-Bershawi Medical Corp (NPI 1386813103, Riverside, CA); City Of Hope Medical Foundation (NPI 1871886366, Duarte, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 6, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1861887077) · Data from the CMS NPPES public registry.