MATTHEW ALLEN FREDERICK D.O.
NPI 1144404526
Emergency Medicine in Knoxville, TN
About Matthew Allen Frederick D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW ALLEN FREDERICK D.O. (NPI 1144404526) is an individual emergency medicine provider in Knoxville, Tennessee, licensed in New Mexico (A-2435-20) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with Unm Hospital, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses 2
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
Matthew Allen Frederick D.o. 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 Reassignments
2Medicare enrollment records show Matthew Frederick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Clovis, NM 88101
- Reassigned Medicare billing, New Mexico enrollment
- 2,331 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 2,105 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.
Areas of Expertise CMS Part B claims 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unm Hospital
Acute Care Hospitals · Albuquerque, NMPhysician 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 14
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
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 Matthew Frederick's NPI number?
The NPI number for Matthew Frederick is 1144404526. It was assigned to this individual provider in the NPPES registry on December 21, 2007.
Where is Matthew Frederick located?
Matthew Frederick practices at 1924 Alcoa Highway Ut Medical Center, Knoxville, TN 37920. The listed phone number is (865) 305-9000.
What is Matthew Frederick's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Matthew Frederick enrolled in Medicare?
Yes. Matthew Frederick 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 organizations bill Medicare for Matthew Frederick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Frederick reassigns Medicare benefits to 2 organizations: Presbyterian Healthcare Services (Clovis, NM) and Unm Medical Group Inc (Albuquerque, NM). 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 Matthew Frederick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Matthew Frederick affiliated with any hospitals?
According to CMS data, Matthew Frederick is affiliated with Unm Hospital.
When was this NPI record last updated?
The NPPES record for Matthew Frederick was last updated on February 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Matthew Allen Frederick, D.O. · NPI 1144404526
Emergency Medicine physician in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since December 21, 2007.
## Identity
- **NPI:** 1144404526 (Entity type: Individual)
- **Enumerated:** December 21, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A-2435-20 (New Mexico)
- **Sole proprietor:** No
## Practice location
- **Address:** 1924 ALCOA HIGHWAY, UT MEDICAL CENTER, Knoxville, TN 37920
- **Phone:** (865) 305-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **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): Presbyterian Healthcare Services (NPI 1629053509, Clovis, NM); Unm Medical Group Inc (NPI 1831218627, Albuquerque, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** February 19, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1144404526) · Data from the CMS NPPES public registry.