KATHERINE ANN WALKER M.D.
NPI 1902244171
Urology in Bethesda, MD
About Katherine Ann Walker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE ANN WALKER M.D. (NPI 1902244171) is an individual urology provider in Bethesda, Maryland, licensed in Maryland (D0099381) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Suburban Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 4
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
Katherine Ann 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 Reassignments
2Medicare enrollment records show Katherine Walker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bethesda, MD 20817
- Reassigned Medicare billing, District of Columbia enrollment
- 96 clinicians in this Medicare group
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia enrollment
- 2,618 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 11
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Suburban Hospital
Acute Care Hospitals · Bethesda, MDHoly Cross Germantown Hospital
Acute Care Hospitals · Germantown, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20817 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Katherine Walker's NPI number?
The NPI number for Katherine Walker is 1902244171. It was assigned to this individual provider in the NPPES registry on June 11, 2013. The provider is also known as Katherine Ann Carlisle M.D..
Where is Katherine Walker located?
Katherine Walker practices at 6410 Rockledge Dr Ste 503, Bethesda, MD 20817. The listed phone number is (301) 530-1700.
What is Katherine Walker's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Katherine Walker enrolled in Medicare?
Yes. Katherine 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 Katherine Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Walker reassigns Medicare benefits to 2 organizations: Chesapeake Urology Associates, LLC (Bethesda, MD) and Inova Health Care Services (Fairfax, VA). 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 Katherine Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Katherine Walker affiliated with any hospitals?
According to CMS data, Katherine Walker is affiliated with Suburban Hospital and Holy Cross Germantown Hospital.
When was this NPI record last updated?
The NPPES record for Katherine Walker was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Katherine Ann Walker, M.D. · NPI 1902244171
Urology physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since June 11, 2013.
## Identity
- **NPI:** 1902244171 (Entity type: Individual)
- **Enumerated:** June 11, 2013
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** D0099381 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 6410 ROCKLEDGE DR STE 503, Bethesda, MD 20817-7822
- **Phone:** (301) 530-1700
## 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): Chesapeake Urology Associates, LLC (NPI 1417772179, Bethesda, MD); Inova Health Care Services (NPI 1669511051, Fairfax, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Texas Tech University Health Science Center School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** March 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1902244171) · Data from the CMS NPPES public registry.