DR. ROBERT CHARLES MIX DNP, CRNA
NPI 1215550454
Nurse Anesthetist, Certified Registered in Columbia, MO
About Dr. Robert Charles Mix Dnp, Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT CHARLES MIX DNP, CRNA (NPI 1215550454) is an individual nurse anesthetist, certified registered in Columbia, Missouri, licensed in Missouri (2020013534) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with University Of Missouri Health Care, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
Accepted 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. Robert Charles Mix Dnp, Crna 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
10Medicare enrollment records show Robert Mix reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, MO 65212
- Reassigned Medicare billing, Missouri enrollment
- 1,395 clinicians in this Medicare group
Windsor, MO 65360
- Reassigned Medicare billing, Missouri enrollment
- 220 clinicians in this Medicare group
Blue Springs, MO 64014
- Reassigned Medicare billing, Kansas and Missouri enrollments
- Medicare enrollment name: Saint Lukes Physician Group Inc
- 845 clinicians in this Medicare group
Lees Summit, MO 64086
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Lukes East Anesthesia Services PC
- 78 clinicians in this Medicare group
Lees Summit, MO 64064
- Reassigned Medicare billing, Kansas and Missouri enrollments
- 138 clinicians in this Medicare group
Kansas City, MO 64139
- Reassigned Medicare billing, Missouri enrollment
- 364 clinicians in this Medicare group
Overland Park, KS 66210
- Reassigned Medicare billing, Kansas and Missouri enrollments
- 328 clinicians in this Medicare group
Shawnee, KS 66216
- Reassigned Medicare billing, Kansas enrollment
- 9 clinicians in this Medicare group
Leavenworth, KS 66048
- Reassigned Medicare billing, Kansas and Missouri enrollments
- 44 clinicians in this Medicare group
Irving, TX 75038
- Reassigned Medicare billing, Missouri enrollment
- 189 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.
University Of Missouri Health Care
Acute Care Hospitals · Columbia, MOSaint Luke's East Hospital
Acute Care Hospitals · Lees Summit, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65212 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.
COLUMBIA, MO 65212
COLUMBIA, MO 65212
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 Robert Mix's NPI number?
The NPI number for Robert Mix is 1215550454. It was assigned to this individual provider in the NPPES registry on May 22, 2020. The provider is also known as Chuck Mix Crna.
Where is Robert Mix located?
Robert Mix practices at One Hospital Dr, Columbia, MO 65212. The listed phone number is (573) 882-2568.
What is Robert Mix's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Robert Mix enrolled in Medicare?
Yes. Robert Mix 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 Robert Mix's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Mix reassigns Medicare benefits to 10 organizations: The Curators Of The University Of Missouri (Columbia, MO), Golden Valley Memorial Hospital District (Windsor, MO), Saint Luke's Physician Group Inc (Blue Springs, MO), St Lukes East Anesthesia Services,p.C. (Lees Summit, MO), Ascentist Physicians Group, LLC (Lees Summit, MO) and 5 more organizations, listed in the Medicare section above. 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 Robert Mix's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Mix accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Kansas, Inc. and Oscar Insurance Company list Robert Mix 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 Robert Mix affiliated with any hospitals?
According to CMS data, Robert Mix is affiliated with University Of Missouri Health Care and Saint Luke's East Hospital.
When was this NPI record last updated?
The NPPES record for Robert Mix was last updated on April 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Robert Charles Mix, DNP, CRNA · NPI 1215550454
Nurse Anesthetist, Certified Registered physician in Columbia, Missouri. Individual provider, active in the CMS NPPES registry since May 22, 2020.
## Identity
- **NPI:** 1215550454 (Entity type: Individual)
- **Enumerated:** May 22, 2020
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 2020013534 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** ONE HOSPITAL DR, Columbia, MO 65212-0001
- **Phone:** (573) 882-2568 · **Fax:** (855) 903-0985
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): The Curators Of The University Of Missouri (NPI 1235126921, Columbia, MO); Golden Valley Memorial Hospital District (NPI 1316995939, Windsor, MO); Saint Luke's Physician Group Inc (NPI 1376257220, Blue Springs, MO); St Lukes East Anesthesia Services,p.C. (NPI 1649283177, Lees Summit, MO); Ascentist Physicians Group, LLC (NPI 1649206319, Lees Summit, MO); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** April 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1215550454) · Data from the CMS NPPES public registry.