SIMON CHI DO
NPI 1841674025
Internal Medicine - Critical Care Medicine in Torrance, CA
About Simon Chi Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIMON CHI DO (NPI 1841674025) is an individual critical care medicine provider in Torrance, California, licensed in California (20A15898) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
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
Simon Chi Do 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
5Medicare enrollment records show Simon Chi reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Torrance, CA 90503
- Reassigned Medicare billing, California enrollment
- 13 clinicians in this Medicare group
Long Beach, CA 90813
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1386750578 (California)
- 1,204 clinicians in this Medicare group
Riverside, CA 92505
- Reassigned Medicare billing, California enrollment
- 114 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 241 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 9
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 90503 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.
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.
TORRANCE, CA 90503
TORRANCE, CA 90503
TORRANCE, CA 90503
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 Simon Chi's NPI number?
The NPI number for Simon Chi is 1841674025. It was assigned to this individual provider in the NPPES registry on July 16, 2015.
Where is Simon Chi located?
Simon Chi practices at 4101 Torrance Blvd, Torrance, CA 90503. The listed phone number is (310) 540-7676.
What is Simon Chi's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Simon Chi enrolled in Medicare?
Yes. Simon Chi 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 Simon Chi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Simon Chi reassigns Medicare benefits to 5 organizations: Southbay Critical Care A Medical Partnership (Torrance, CA), Cep America - California (Long Beach, CA), El-Bershawi Medical Corp (Riverside, CA), Inpatient Specialists Of California, PC (San Bernardino, CA) and Darin Rentz Do PC (Redlands, 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 Simon Chi'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 Simon Chi was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Simon Chi, DO · NPI 1841674025
Critical Care Medicine physician in Torrance, California. Individual provider, active in the CMS NPPES registry since July 16, 2015.
## Identity
- **NPI:** 1841674025 (Entity type: Individual)
- **Enumerated:** July 16, 2015
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 20A15898 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4101 TORRANCE BLVD, Torrance, CA 90503-4607
- **Phone:** (310) 540-7676
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Southbay Critical Care A Medical Partnership (NPI 1568174282, Torrance, CA); Cep America - California (NPI 1144849530, Long Beach, CA); El-Bershawi Medical Corp (NPI 1386813103, Riverside, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); Darin Rentz Do PC (NPI 1689321747, Redlands, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** March 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1841674025) · Data from the CMS NPPES public registry.