ELANA TAN M.D.
NPI 1730525338
Emergency Medicine in Chicago, IL
About Elana Tan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELANA TAN M.D. (NPI 1730525338) is an individual emergency medicine provider in Chicago, Illinois, licensed in Tennessee (59876) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of Ponce School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Elana Tan M.d. 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 Elana Tan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78750
- Reassigned Medicare billing, Texas enrollment
- 93 clinicians in this Medicare group
San Marcos, TX 78666
- Reassigned Medicare billing, Texas enrollment
- 137 clinicians in this Medicare group
Gonzales, TX 78629
- Reassigned Medicare billing, Texas enrollment
- 430 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 3
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Santa Rosa Hospital-San Marcos
Acute Care Hospitals · San Marcos, TXSt David's Medical Center
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 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.
CHICAGO, IL 60612
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 Elana Tan's NPI number?
The NPI number for Elana Tan is 1730525338. It was assigned to this individual provider in the NPPES registry on May 22, 2013.
Where is Elana Tan located?
Elana Tan practices at 1969 W Ogden Ave, Chicago, IL 60612. The listed phone number is (312) 864-6000.
What is Elana Tan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Elana Tan enrolled in Medicare?
Yes. Elana Tan 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 Elana Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elana Tan reassigns Medicare benefits to 3 organizations: Austin ER Associates PLLC (Austin, TX), Comal Emergency Physicians, PLLC (San Marcos, TX) and Victoria Emergency Partners LLC (Gonzales, TX). 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 Elana Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elana Tan accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Sendero Health Plans, Local Nonprofit list Elana Tan 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 Elana Tan affiliated with any hospitals?
According to CMS data, Elana Tan is affiliated with Christus Santa Rosa Hospital-San Marcos and St David's Medical Center.
When was this NPI record last updated?
The NPPES record for Elana Tan was last updated on October 4, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.