NPPES file of Aug 9, 2026

David Douglas Walker, M.D.

Otology & Neurotology Physician · Northbrook, IL

David Douglas Walker, M.D. is an otology & neurotology physician with a practice address in Northbrook, Illinois, and NPI 1265788186, issued on Jul 29, 2012. Check the license (Illinois 036157841, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265788186
Name
David Douglas Walker
Credential
M.D.
Primary taxonomy
Otology & Neurotology Physician 207YX0901X
License number
036157841 IL
Self-reported in NPPES; status is on the state search
Practice location
501 Skokie Blvd, Northbrook, IL 60062
Phone
(847) 504-3300
Enumerated
Jul 29, 2012
Record last updated
Mar 25, 2026
Fax
(847) 504-3305
Medicare enrollment
Enrolled (PECOS I20210916000122); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest otology & neurotology physician records → All 16 in Illinois → Look up another NPI →

Also registered at 501 Skokie Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hamdy Elhadary, PA-CSurgical Physician Assistant1467554410
  2. Kristine Erickson, AU.D., CCC-AAudiologist1912969528
  3. Mary Eterno, PA-CSurgical Physician Assistant1962266957
  4. Paige Gkekas, PA-CSurgical Physician Assistant1487496477
  5. Janet HanAudiologist1194006528
  6. Lauren Hardies, AU.D.Audiologist1215210760

Verify David Douglas Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036157841    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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24% fewer Medicare Part D claims than the average otology & neurotology physician in 2024

311 Medicare Part D claims for 169 beneficiaries, against an average of 409 among the 340 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 26 claims were for opioids.

  1. David Walker311
  2. Specialty average409

Most prescribed

  1. Ciprofloxacin-Dexamethasone46 claims
  2. Ofloxacin39 claims
  3. Cephalexin33 claims
  4. Hydrocodone-Acetaminophen26 claims
  5. Fluticasone Propionate21 claims
  6. Triamterene-Hydrochlorothiazid21 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $273.10

3 payments; by number, the most common kind was food and beverage; the largest payer was Oticon Medical, LLC. The 283 providers of this specialty with any payment received $2,757.03 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Walker$273.10
  2. Specialty average$2,757.03

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Endeavor Health Medical GroupEvanston, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Douglas Walker among 16 otology & neurotology physician records in Illinois

David Douglas Walker, M.D. is one of 16 otology & neurotology physician records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.

  • NPI issued2012 · 75% of these records are older, 13% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2012 · median 1993 among the 10 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207YX0901X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otology & Neurotology Physician providers in Illinois

There are 16 otology & neurotology physician records in Illinois.

All 16 in Illinois → Every provider in Northbrook → Otology & Neurotology Physician nationwide →

The 8 otology & neurotology physician records with the nearest ZIP codes

  1. Dennis Moore, MDPark Ridge, IL 600681295832483
  2. Griffith Hsu, MDGlen Ellyn, IL 601371669448056
  3. John Leonetti, MDMaywood, IL 601531962489823
  4. Sam Marzo, MDMaywood, IL 601531699752568
  5. Andrew Fishman, MDWinfield, IL 601901427279348
  6. Richard Wiet, M.D.Winfield, IL 601901346315017
  7. Robert Battista, MDHinsdale, IL 605211770565947
  8. Richard Wiet, M.D.Hinsdale, IL 605211760464911

Common questions

What is David Douglas Walker, M.D.'s NPI number?

David Douglas Walker, M.D.'s National Provider Identifier (NPI) is 1265788186, issued on Jul 29, 2012. An NPI identifies a provider in billing; it is not a license.

Where is David Douglas Walker, M.D. located?

The NPPES record lists a practice address at 501 Skokie Blvd, Northbrook, IL, 60062. Phone: (847) 504-3300. Providers update this record themselves, so call before visiting.

How can I verify David Douglas Walker, M.D.'s license?

NPPES lists Illinois license number 036157841, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Douglas Walker, M.D. prescribe under Medicare Part D?

In 2024, David Douglas Walker, M.D. had 311 Medicare Part D claims for 169 beneficiaries; the average among otology & neurotology physician prescribers was 409. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.