NELSON SHAM DO
NPI 1306465547
Anesthesiology in Chicago, IL
About Nelson Sham Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NELSON SHAM DO (NPI 1306465547) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (125.081106) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (2021).
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
Nelson Sham 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 Reassignment
Medicare enrollment records show Nelson Sham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 30 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.
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.
CHICAGO, IL 60657
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 Nelson Sham's NPI number?
The NPI number for Nelson Sham is 1306465547. It was assigned to this individual provider in the NPPES registry on April 8, 2020.
Where is Nelson Sham located?
Nelson Sham practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.
What is Nelson Sham's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Nelson Sham enrolled in Medicare?
Yes. Nelson Sham 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 Nelson Sham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nelson Sham reassigns Medicare benefits to Alameda Anesthesia Associates Medical Group, Inc (Castro Valley, 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 Nelson Sham'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 Nelson Sham was last updated on July 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.