ERIN M CHAMBERLAIN
NPI 1215804901
Nurse Practitioner - Family in Knoxville, TN
About Erin M Chamberlain NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIN M CHAMBERLAIN (NPI 1215804901) is an individual family provider in Knoxville, Tennessee, licensed in Tennessee (38591) and active in the NPI registry since October 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
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 (PECOS)
Erin M Chamberlain is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Erin Chamberlain reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Knoxville, TN 37920
- Reassigned Medicare billing, Tennessee enrollment
- 14 clinicians in this Medicare group
Maryville, TN 37804
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: House Call Primary Care, PLLC
- 33 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37920 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.
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
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 Erin Chamberlain's NPI number?
The NPI number for Erin Chamberlain is 1215804901. It was assigned to this individual provider in the NPPES registry on October 20, 2025.
Where is Erin Chamberlain located?
Erin Chamberlain practices at 1924 Alcoa Hwy, Knoxville, TN 37920. The listed phone number is (865) 305-9799.
What is Erin Chamberlain's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Erin Chamberlain enrolled in Medicare?
Yes. Erin Chamberlain is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Erin Chamberlain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Chamberlain reassigns Medicare benefits to 2 organizations: University Emergency Obstetrics LLC (Knoxville, TN) and Housecall Primary Care, PLLC (Maryville, TN). 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 Erin Chamberlain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Erin Chamberlain accept?
Health plans from BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Insurance Company and UnitedHealthcare list Erin Chamberlain 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 Erin Chamberlain was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.
# Erin M Chamberlain · NPI 1215804901
Family physician in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since October 20, 2025.
## Identity
- **NPI:** 1215804901 (Entity type: Individual)
- **Enumerated:** October 20, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 38591 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1924 ALCOA HWY, Knoxville, TN 37920-1511
- **Phone:** (865) 305-9799
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Emergency Obstetrics LLC (NPI 1629706445, Knoxville, TN); Housecall Primary Care, PLLC (NPI 1578956710, Maryville, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** October 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1215804901) · Data from the CMS NPPES public registry.