SIMA A. NEKOUI MD
NPI 1619044567
Psychiatry & Neurology - Neurology in Downey, CA
About Sima A. Nekoui Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIMA A. NEKOUI MD (NPI 1619044567) is an individual neurology provider in Downey, California, licensed in California (A62607) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with Shannon Medical Center, and is a graduate of University Of Texas Medical Branch At Galveston (1992).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sima A. Nekoui 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Shannon Medical Center
Acute Care Hospitals · San Angelo, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90242 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Sima Nekoui's NPI number?
The NPI number for Sima Nekoui is 1619044567. It was assigned to this individual provider in the NPPES registry on November 29, 2006.
Where is Sima Nekoui located?
Sima Nekoui practices at 9449 Imperial Hwy # C281, Downey, CA 90242. The listed phone number is (562) 657-2281.
What is Sima Nekoui's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Sima Nekoui enrolled in Medicare?
Yes. Sima Nekoui 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.
What insurance does Sima Nekoui accept?
Health plans from Blue Cross Blue Shield of Wyoming and UnitedHealthcare list Sima Nekoui 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.
Is Sima Nekoui affiliated with any hospitals?
According to CMS data, Sima Nekoui is affiliated with Shannon Medical Center.
When was this NPI record last updated?
The NPPES record for Sima Nekoui was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Sima A. Nekoui, MD · NPI 1619044567
Neurology physician in Downey, California. Individual provider, active in the CMS NPPES registry since November 29, 2006.
## Identity
- **NPI:** 1619044567 (Entity type: Individual)
- **Enumerated:** November 29, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** A62607 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9449 IMPERIAL HWY # C281, Downey, CA 90242-2814
- **Phone:** (562) 657-2281
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 1992
## Record status
- **NPPES last updated:** January 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1619044567) · Data from the CMS NPPES public registry.