DR. DANIEL REUBEN WALKER M.D.
NPI 1891824272
Pathology - Blood Banking & Transfusion Medicine in Columbia, MO
About Dr. Daniel Reuben Walker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DANIEL REUBEN WALKER M.D. (NPI 1891824272) is an individual blood banking & transfusion medicine provider in Columbia, Missouri, licensed in Missouri (2020023675) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Northeast Regional Medical Center, and maintains a secondary practice location in Lackland Afb.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Daniel Reuben Walker M.d. 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 Reassignment
Medicare enrollment records show Daniel Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Columbia, MO 65212
- Reassigned Medicare billing, Missouri enrollment
- 1,395 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 3
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northeast Regional Medical Center
Acute Care Hospitals · Kirksville, MOBoone Hospital Center
Acute Care Hospitals · Columbia, MOUniversity Of Missouri Health Care
Acute Care Hospitals · Columbia, MOLake Regional Health System
Acute Care Hospitals · Osage Beach, 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.
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.
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 Daniel Walker's NPI number?
The NPI number for Daniel Walker is 1891824272. It was assigned to this individual provider in the NPPES registry on March 3, 2007.
Where is Daniel Walker located?
Daniel Walker practices at 1 Hospital Dr, Columbia, MO 65212. The listed phone number is (573) 882-1201.
What is Daniel Walker's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Blood Banking & Transfusion Medicine, with taxonomy code 207ZB0001X.
Is Daniel Walker enrolled in Medicare?
Yes. Daniel Walker 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 organization bills Medicare for Daniel Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Walker reassigns Medicare benefits to The Curators Of The University Of Missouri (Columbia, MO). The 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 Daniel Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Daniel Walker affiliated with any hospitals?
According to CMS data, Daniel Walker is affiliated with Northeast Regional Medical Center, Boone Hospital Center, University Of Missouri Health Care and Lake Regional Health System.
When was this NPI record last updated?
The NPPES record for Daniel Walker was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Daniel Reuben Walker, M.D. · NPI 1891824272
Blood Banking & Transfusion Medicine physician in Columbia, Missouri. Individual provider, active in the CMS NPPES registry since March 3, 2007.
## Identity
- **NPI:** 1891824272 (Entity type: Individual)
- **Enumerated:** March 3, 2007
- **Primary specialty:** Pathology - Blood Banking & Transfusion Medicine · taxonomy 207ZB0001X
- **State license:** 2020023675 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 HOSPITAL DR, Columbia, MO 65212-0001
- **Phone:** (573) 882-1201 · **Fax:** (573) 884-4612
## 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:** The Curators Of The University Of Missouri (NPI 1235126921, Columbia, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** June 6, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1891824272) · Data from the CMS NPPES public registry.