MRS. ELLEN RUTH KOTKIN LCSW
NPI 1457780686
Social Worker - Clinical in Irvine, CA
About Mrs. Ellen Ruth Kotkin Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ELLEN RUTH KOTKIN LCSW (NPI 1457780686) is an individual clinical provider in Irvine, California, licensed in California (73934) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Newport Beach, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Mrs. Ellen Ruth Kotkin 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 Reassignment
Medicare enrollment records show Ellen Kotkin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Irvine, CA 92606
- Reassigned Medicare billing, California enrollment
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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ellen Kotkin's NPI number?
The NPI number for Ellen Kotkin is 1457780686. It was assigned to this individual provider in the NPPES registry on November 7, 2013.
Where is Ellen Kotkin located?
Ellen Kotkin practices at 16755 Von Karman Ave, Irvine, CA 92606. The listed phone number is (949) 929-9244.
What is Ellen Kotkin's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Ellen Kotkin enrolled in Medicare?
Yes. Ellen Kotkin 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 Ellen Kotkin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Kotkin reassigns Medicare benefits to Ellen Kotkin Licensed Clinical Social Worker Professional Corp (Irvine, 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 Ellen Kotkin'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 Ellen Kotkin was last updated on July 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mrs. Ellen Ruth Kotkin, LCSW · NPI 1457780686
Clinical provider in Irvine, California. Individual provider, active in the CMS NPPES registry since November 7, 2013.
## Identity
- **NPI:** 1457780686 (Entity type: Individual)
- **Enumerated:** November 7, 2013
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 73934 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 16755 VON KARMAN AVE, Irvine, CA 92606-4930
- **Phone:** (949) 929-9244
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Ellen Kotkin Licensed Clinical Social Worker Professional Corp (NPI 1992485627, Irvine, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 18, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1457780686) · Data from the CMS NPPES public registry.