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KEITH NILSEN MS, LPC, MHSP, NCC
NPI 1841426814
Counselor - Professional in Chattanooga, TN

Active since June 04, 2009PECOS Enrolled
801 N HOLTZCLAW AVE, CHATTANOOGA, TN 37404(423) 697-5985(423) 697-5999 Get Directions Write a Review

NPPES record last updated: January 24, 2017. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 24, 2017, Aug 26, 2016 (2 updates tracked since 2016).

About Keith Nilsen Ms, Lpc, Mhsp, Ncc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KEITH NILSEN MS, LPC, MHSP, NCC (NPI 1841426814) is an individual professional provider in Chattanooga, Tennessee, licensed in Tennessee (3734) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841426814
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameKEITH NILSENCredential: MS, LPC, MHSP, NCC
Location Address801 N HOLTZCLAW AVEChattanooga, TN 37404-1236
Mailing Address275 Cumberland BndNashville, TN 37228-1805 · (931) 349-4533 · Fax (423) 728-6449
Phone(423) 697-5985
Fax(423) 697-5999
Sole ProprietorNo
Enumeration DateJune 4, 2009
Last NPPES UpdateJanuary 24, 20172 updates tracked since enumeration
✔ NPI 1841426814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in TN · 3734
Also ListedCounselorTaxonomy 101Y00000X · License 3840 (NC)
801 N HOLTZCLAW AVE, Chattanooga, TN 37404
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Keith Nilsen Ms, Lpc, Mhsp, Ncc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Keith Nilsen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ipc Pac Healthcare Services Of Tennessee PC
201 mi
Internal Medicine
1 MEDICAL PARK BLVD
Bristol, TN 37620
  • Reassigned Medicare billing, Tennessee enrollment
  • 230 clinicians in this Medicare group
NPI 1104277656 (423) 844-1121
Bh Services Southeast 1 PC
227 mi
Nurse Practitioner
2565 N WASHINGTON AVE
Brownsville, TN 38012
  • Reassigned Medicare billing, Tennessee enrollment
  • 129 clinicians in this Medicare group
NPI 1164251526 (731) 772-4199
Cs Pacs 3 Southeast, LLC
274 mi
Hospitalist
1600 BLAND ST
Bluefield, WV 24701
  • Reassigned Medicare billing, Tennessee enrollment
  • 227 clinicians in this Medicare group
NPI 1154104958 (304) 327-2485
Nv Pacs 2 LLC
1,686 mi
Hospitalist
10550 PARK RUN DR
Las Vegas, NV 89144
  • Reassigned Medicare billing, Tennessee enrollment
  • 253 clinicians in this Medicare group
NPI 1427534809 (865) 693-1000

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 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TENESHA DOUGLAS-THOMAS LPC/MHSP, NCC
Counselor (Mental Health)
801 N HOLTZCLAW AVE, SUITE 101
CHATTANOOGA, TN 37404
Hamilton County (615) 743-1571
KATYBETH C ELLER LPCMHSP
Counselor (Professional)
801 N HOLTZCLAW AVE, SUITE 101
CHATTANOOGA, TN 37404
Hamilton County (423) 209-7091
DR. STEPHEN DUANE SPALDING MD
Psychiatry & Neurology (Psychiatry)
801 N HOLTZCLAW AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 697-5950
CAITLIN MOORE MERRITT LPC/MHSP, M.ED., NCC
Counselor (Professional)
801 N HOLTZCLAW AVE, STE 101
CHATTANOOGA, TN 37404
Hamilton County (866) 816-0433

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 Keith Nilsen's NPI number?

The NPI number for Keith Nilsen is 1841426814. It was assigned to this individual provider in the NPPES registry on June 4, 2009.

Where is Keith Nilsen located?

Keith Nilsen practices at 801 N Holtzclaw Ave, Chattanooga, TN 37404. The listed phone number is (423) 697-5985.

What is Keith Nilsen's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Keith Nilsen enrolled in Medicare?

Yes. Keith Nilsen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Keith Nilsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Keith Nilsen reassigns Medicare benefits to 4 organizations: Ipc Pac Healthcare Services Of Tennessee PC (Bristol, TN), Bh Services Southeast 1 PC (Brownsville, TN), Cs Pacs 3 Southeast, LLC (Bluefield, WV) and Nv Pacs 2 LLC (Las Vegas, NV). 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 Keith Nilsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Keith Nilsen accept?

Health plans from Oscar Insurance Company and UnitedHealthcare list Keith Nilsen 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 Keith Nilsen was last updated on January 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.