SETH A. EAPPEN, MD PLLC
NPI 1639610553
Psychiatry & Neurology - Child & Adolescent Psychiatry in Oak Brook, IL
About Seth A. Eappen, Md Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SETH A. EAPPEN, MD PLLC (NPI 1639610553) is a healthcare organization registered as a child & adolescent psychiatry in Oak Brook, Illinois and active in the NPI registry since March 2017. The organization maintains 2 additional practice locations and lists Seth Eappen, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Seth A. Eappen, Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Seth A. Eappen, MD PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (6)
Pensacola, FL 32514
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Seth A. Eappen, MD PLLC's NPI number?
The NPI number for Seth A. Eappen, MD PLLC is 1639610553. It was assigned to this organization in the NPPES registry on March 10, 2017.
Where is Seth A. Eappen, MD PLLC located?
Seth A. Eappen, MD PLLC is located at 600 Enterprise Dr Ste 220, Oak Brook, IL 60523. The listed phone number is (844) 632-7736.
What is Seth A. Eappen, MD PLLC's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Seth A. Eappen, MD PLLC enrolled in Medicare?
Yes. Seth A. Eappen, MD PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Seth A. Eappen, MD PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Seth A. Eappen, MD PLLC. A 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 the clinician's services. The largest specialties are Psychiatry (3), Nurse Practitioner (2) and Clinical Psychologist (1). Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Seth A. Eappen, MD PLLC was last updated on July 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Seth A. Eappen, Md Pllc · NPI 1639610553
Child & Adolescent Psychiatry organization in Oak Brook, Illinois. Organization record, active in the CMS NPPES registry since March 10, 2017.
## Identity
- **NPI:** 1639610553 (Entity type: Organization)
- **Enumerated:** March 10, 2017
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **Organization subpart:** No
- **Authorized official:** Seth Eappen, OWNER
## Practice location
- **Address:** 600 ENTERPRISE DR STE 220, Oak Brook, IL 60523
- **Phone:** (844) 632-7736 · **Fax:** (888) 972-3621
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Psychiatry (3), Nurse Practitioner (2), Clinical Psychologist (1); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 2, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1639610553) · Data from the CMS NPPES public registry.