DR. DAVID DOUGLAS WALKER M.D.
NPI 1265788186
Otolaryngology - Otology & Neurotology in Northbrook, IL
About Dr. David Douglas Walker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID DOUGLAS WALKER M.D. (NPI 1265788186) is an individual otology & neurotology provider in Northbrook, Illinois, licensed in Illinois (036157841) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Rush Medical College Of Rush University (2012).
NPPES Registry Identity
Specialties & Licenses 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. David Douglas 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
3Medicare enrollment records show David Walker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Lowell, AR 72745
- Reassigned Medicare billing, Arkansas enrollment
- Also billed through NPI 1720217599 (Arkansas)
- 1,246 clinicians in this Medicare group
Little Rock, AR 72202
- Reassigned Medicare billing, Arkansas enrollment
- 944 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 19
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILSwedish Hospital
Acute Care Hospitals · Chicago, ILNorthwest Community Hospital 1
Acute Care Hospitals · Arlington Heights, ILOther Providers at the Same Location NPPES 16
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 David Walker's NPI number?
The NPI number for David Walker is 1265788186. It was assigned to this individual provider in the NPPES registry on July 29, 2012.
Where is David Walker located?
David Walker practices at 501 Skokie Blvd, Northbrook, IL 60062. The listed phone number is (847) 504-3300.
What is David Walker's specialty?
The primary specialty registered for this NPI is Otolaryngology, specializing in Otology & Neurotology, with taxonomy code 207YX0901X.
Is David Walker enrolled in Medicare?
Yes. David 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 David Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Walker reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), University Of Arkansas For Medical Sciences (Lowell, AR) and Arkansas Childrens Hospital (Little Rock, AR). 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 David Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Walker accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list David Walker 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 David Walker affiliated with any hospitals?
According to CMS data, David Walker is affiliated with Northshore University Healthsystem - Evanston Hospital, Swedish Hospital and Northwest Community Hospital 1.
When was this NPI record last updated?
The NPPES record for David Walker was last updated on March 25, 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.