SOUCHEAT SIOU MD
NPI 1821146788
Internal Medicine - Pulmonary Disease in Anaheim, CA
About Soucheat Siou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUCHEAT SIOU MD (NPI 1821146788) is an individual pulmonary disease provider in Anaheim, California, licensed in California (A71294) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1994).
NPPES Registry Identity
Specialties & Licenses
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
Soucheat Siou 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 Reassignment
Medicare enrollment records show Soucheat Siou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 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 92807 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.
ANAHEIM, CA 92807
ANAHEIM, CA 92807
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 Soucheat Siou's NPI number?
The NPI number for Soucheat Siou is 1821146788. It was assigned to this individual provider in the NPPES registry on January 8, 2007.
Where is Soucheat Siou located?
Soucheat Siou practices at 441 N Lakeview Ave, Anaheim, CA 92807. The listed phone number is (888) 988-2800.
What is Soucheat Siou's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Soucheat Siou enrolled in Medicare?
Yes. Soucheat Siou 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 Soucheat Siou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Soucheat Siou reassigns Medicare benefits to Southern California Permanente Medical Group (Anaheim, 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 Soucheat Siou'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 Soucheat Siou was last updated on November 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Soucheat Siou, MD · NPI 1821146788
Pulmonary Disease physician in Anaheim, California. Individual provider, active in the CMS NPPES registry since January 8, 2007.
## Identity
- **NPI:** 1821146788 (Entity type: Individual)
- **Enumerated:** January 8, 2007
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** A71294 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 441 N LAKEVIEW AVE, Anaheim, CA 92807-3028
- **Phone:** (888) 988-2800
## 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:** Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1994
## Record status
- **NPPES last updated:** November 18, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1821146788) · Data from the CMS NPPES public registry.