DR. JOSEPH BENJAMIN WALKER III CRNA
NPI 1437944964
Nurse Anesthetist, Certified Registered in Bel Air, MD
About Dr. Joseph Benjamin Walker Iii Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH BENJAMIN WALKER III CRNA (NPI 1437944964) is an individual nurse anesthetist, certified registered in Bel Air, Maryland, licensed in Maryland (R224261) and active in the NPI registry since April 2025. He is affiliated with Umd Upper Chesapeake Medical Center, maintains 16 additional practice locations, and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 16
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. Joseph Benjamin Walker Iii 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
2Medicare enrollment records show Joseph Walker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bel Air, MD 21014
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Maryland Anesthesia & Pain Management Services PC
- 78 clinicians in this Medicare group
Columbia, MD 21046
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 717 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umd Upper Chesapeake Medical Center
Acute Care Hospitals · Bel Air, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21014 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.
BEL AIR, MD 21014
BEL AIR, MD 21014
BEL AIR, MD 21014
BEL AIR, MD 21014
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 Joseph Walker's NPI number?
The NPI number for Joseph Walker is 1437944964. It was assigned to this individual provider in the NPPES registry on April 14, 2025.
Where is Joseph Walker located?
Joseph Walker practices at 500 Upper Chesapeake Dr, Bel Air, MD 21014. The listed phone number is (443) 643-1000.
What is Joseph Walker's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Joseph Walker enrolled in Medicare?
Yes. Joseph 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 organizations bill Medicare for Joseph Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Walker reassigns Medicare benefits to 2 organizations: Maryland Anesthesia & Pain Management Services, P.C. (Bel Air, MD) and First Colonies Anesthesia Associates, LLC (Columbia, MD). 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 Joseph Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Joseph Walker affiliated with any hospitals?
According to CMS data, Joseph Walker is affiliated with Umd Upper Chesapeake Medical Center.
When was this NPI record last updated?
The NPPES record for Joseph Walker was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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. Joseph Benjamin Walker III, CRNA · NPI 1437944964
Nurse Anesthetist, Certified Registered physician in Bel Air, Maryland. Individual provider, active in the CMS NPPES registry since April 14, 2025.
## Identity
- **NPI:** 1437944964 (Entity type: Individual)
- **Enumerated:** April 14, 2025
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** R224261 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 UPPER CHESAPEAKE DR, Bel Air, MD 21014-4324
- **Phone:** (443) 643-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Maryland Anesthesia & Pain Management Services, P.C. (NPI 1871928812, Bel Air, MD); First Colonies Anesthesia Associates, LLC (NPI 1740218767, Columbia, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** September 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437944964) · Data from the CMS NPPES public registry.