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DR. KAREN KAY BREWER-MIXON PHD
NPI 1932161726
Clinical Neuropsychologist in Dallas, TX

Active since April 05, 2006PECOS EnrolledAccepts Medicare Assignment
74.59/100
CMS Quality Rating
5323 HARRY HINES BLVD, DALLAS, TX 75390(214) 645-0624(214) 645-0078 Get Directions Write a Review

NPPES record last updated: October 10, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Karen Kay Brewer-mixon Phd NPPES

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

DR. KAREN KAY BREWER-MIXON PHD (NPI 1932161726) is an individual clinical neuropsychologist in Dallas, Texas, licensed in Texas (25376) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1994).

NPPES Registry Identity

NPI1932161726
Entity TypeIndividualFemale
Primary Taxonomy103G00000X
Provider Legal NameDR. KAREN KAY BREWER-MIXONCredential: PHD
Location Address5323 HARRY HINES BLVDDallas, TX 75390-7208
Mailing AddressPo Box 845347Dallas, TX 75284-5347 · (245) 645-0624 · Fax (245) 645-0078
Phone(214) 645-0624
Fax(214) 645-0078
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateApril 5, 2006
Last NPPES UpdateOctober 10, 2012
✔ NPI 1932161726 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License✔ Licensed in TX · 25376
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
5323 HARRY HINES BLVD, Dallas, TX 75390
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINS31582
Medicare ID-Type Unspecified8D7886TX
Medicaid030396802TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare.Insurance ›

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

Dr. Karen Kay Brewer-mixon Phd 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.

PECOS PAC ID5799715694
PECOS Enrollment IDI20250625000011
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

2

Medicare enrollment records show Karen Brewer-mixon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Texas Southwestern Medical Center At Dallas
Same address
Orthopaedic Surgery
5323 HARRY HINES BLVD
Dallas, TX 75390
  • Reassigned Medicare billing, Texas enrollment
  • 5,299 clinicians in this Medicare group
NPI 1083669766 (214) 645-0624
Medstar Medical Group II LLC
1,183 mi
Critical Care Medicine
3800 RESERVOIR RD NW
Washington, DC 20007
  • Reassigned Medicare billing, District of Columbia enrollment
  • 3,530 clinicians in this Medicare group
NPI 1205562816 (703) 558-1403

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

74.59/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality56.12
Promoting Interoperability100
Improvement Activities40
Cost59.2

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.

MRS. TANYA MARIE PLETIN PA-C
Physician Assistant
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 648-6400
BENJAMIN SETH MARTINEZ MD
Anesthesiology
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 648-3111
LEE M. LUNSFORD MD
Anesthesiology
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 648-8000
TING-YI CHEN M.D.
Internal Medicine (Infectious Disease)
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 645-2800
DR. STEPHANIE C JONES MD
Pain Medicine (Interventional Pain Medicine)
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 648-9374
DR. KATHERINE ANNA JOHNSON MD
Pediatrics
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 456-0771
ALEX KOYFMAN M.D.
Emergency Medicine
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 645-0624
MR. JAWAHAR JAGARAPU M.D
Pediatrics (Neonatal-Perinatal Medicine)
5323 HARRY HINES BLVD
DALLAS, TX 75390
Dallas County (214) 648-3903

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 Karen Brewer-mixon's NPI number?

The NPI number for Karen Brewer-mixon is 1932161726. It was assigned to this individual provider in the NPPES registry on April 5, 2006.

Where is Karen Brewer-mixon located?

Karen Brewer-mixon practices at 5323 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (214) 645-0624.

What is Karen Brewer-mixon's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Karen Brewer-mixon enrolled in Medicare?

Yes. Karen Brewer-mixon 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 Karen Brewer-mixon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Brewer-mixon reassigns Medicare benefits to 2 organizations: University Of Texas Southwestern Medical Center At Dallas (Dallas, TX) and Medstar Medical Group II LLC (Washington, DC). 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 Karen Brewer-mixon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Brewer-mixon accept?

Health plans from Blue Cross and Blue Shield of Texas and Cigna Healthcare list Karen Brewer-mixon 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 Karen Brewer-mixon was last updated on October 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.