DR. ANDREW KARL NIELSEN M.D.
NPI 1093155913
Internal Medicine in Columbia, TN
About Dr. Andrew Karl Nielsen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW KARL NIELSEN M.D. (NPI 1093155913) is an individual internal medicine provider in Columbia, Tennessee, licensed in Tennessee (57809) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Maury Regional Hospital, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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 (PECOS)
Dr. Andrew Karl Nielsen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Andrew Nielsen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, TN 38401
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: Maury Regional Medical Group, Inc
- 228 clinicians in this Medicare group
Columbia, TN 38401
- Reassigned Medicare billing, Tennessee enrollment
- 49 clinicians in this Medicare group
Tullahoma, TN 37388
- Reassigned Medicare billing, Tennessee enrollment
- 17 clinicians in this Medicare group
Charleston, SC 29414
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: University Medical Associates Of The Medical University Of South Carol
- 2,594 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maury Regional Hospital
Acute Care Hospitals · Columbia, TNMarshall Medical Center
Critical Access Hospitals · Lewisburg, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
COLUMBIA, TN 38401
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 Andrew Nielsen's NPI number?
The NPI number for Andrew Nielsen is 1093155913. It was assigned to this individual provider in the NPPES registry on June 25, 2013.
Where is Andrew Nielsen located?
Andrew Nielsen practices at 854 W James M Campbell Blvd Ste 403, Columbia, TN 38401. The listed phone number is (931) 380-0075.
What is Andrew Nielsen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Andrew Nielsen enrolled in Medicare?
Yes. Andrew Nielsen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Andrew Nielsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Nielsen reassigns Medicare benefits to 4 organizations: Family Health Group Inc (Columbia, TN), Maury Regional Hospital (Columbia, TN), Community Hospices Of America - Tennessee, LLC (Tullahoma, TN) and University Medical Associates (Charleston, SC). 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 Andrew Nielsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Nielsen accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 3 other insurers list Andrew Nielsen 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.
Is Andrew Nielsen affiliated with any hospitals?
According to CMS data, Andrew Nielsen is affiliated with Maury Regional Hospital and Marshall Medical Center.
When was this NPI record last updated?
The NPPES record for Andrew Nielsen was last updated on February 7, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.