YESSENIA SERVIN LCSW
NPI 1336803568
Social Worker in Oak Brook, IL
About Yessenia Servin Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YESSENIA SERVIN LCSW (NPI 1336803568) is an individual social worker in Oak Brook, Illinois, licensed in Illinois (149020992) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Yessenia Servin Lcsw 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
2Medicare enrollment records show Yessenia Servin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 48 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 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Yessenia Servin's NPI number?
The NPI number for Yessenia Servin is 1336803568. It was assigned to this individual provider in the NPPES registry on October 25, 2021.
Where is Yessenia Servin located?
Yessenia Servin practices at 2625 Butterfield Rd Ste 138S, Oak Brook, IL 60523. The listed phone number is (630) 788-5835.
What is Yessenia Servin's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Yessenia Servin enrolled in Medicare?
Yes. Yessenia Servin 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 Yessenia Servin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yessenia Servin reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Oak Brook, IL) and Rush University Medical Center (Chicago, IL). 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 Yessenia Servin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Yessenia Servin accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Yessenia Servin 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.
When was this NPI record last updated?
The NPPES record for Yessenia Servin was last updated on May 5, 2022. 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.
# Yessenia Servin, LCSW · NPI 1336803568
Social Worker provider in Oak Brook, Illinois. Individual provider, active in the CMS NPPES registry since October 25, 2021.
## Identity
- **NPI:** 1336803568 (Entity type: Individual)
- **Enumerated:** October 25, 2021
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 149020992 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2625 BUTTERFIELD RD STE 138S, Oak Brook, IL 60523-1244
- **Phone:** (630) 788-5835
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Rush University Medical Center (NPI 1801375696, Oak Brook, IL); Rush University Medical Center (NPI 1356891618, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** May 5, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1336803568) · Data from the CMS NPPES public registry.