Walter J. Willoughby, MD
Pulmonary Disease Physician · Las Vegas, NV
Walter J. Willoughby, MD is a pulmonary disease physician with a practice address in Las Vegas, Nevada, and NPI 1376592477, issued on May 8, 2006. Check the license (Nevada 4004, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Walter J. Willoughby
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 4004 NV
Self-reported in NPPES; status is on the state search - Practice location
- 10105 Banburry Cross Dr Ste 355, Las Vegas, NV 89144
- Phone
- (702) 409-3069
- Enumerated
- May 8, 2006
- Record last updated
- Nov 3, 2025
- Fax
- (702) 473-1869
- Medicaid ID
- 1376592477 NV
- Medicare enrollment
- Enrolled (PECOS I20101213000362); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 90 in Nevada → Look up another NPI →
Verify Walter J. Willoughby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 4004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average pulmonary disease physician in 2024
2,761 Medicare Part D claims for 358 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone357 claims
- Albuterol Sulfate Hfa341 claims
- Breztri Aerosphere209 claims
- Trelegy Ellipta187 claims
- Azithromycin126 claims
- Symbicort117 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.
The MIPS final score for 2023 (Medicare payment program): 74.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,373.44
68 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Walter J. Willoughby among 90 pulmonary disease physician records in Nevada
Walter J. Willoughby, MD is one of 90 pulmonary disease physician records with a practice address in Nevada. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1975 · median 2007 among the 69 with a school on file
- Record last updated2025 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Nevada
There are 90 pulmonary disease physician records in Nevada.
All 90 in Nevada → Every provider in Las Vegas → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Karishma Bhatia Mehta, MDLas Vegas, NV 891441598174351
- Nisarg Changawala, MDLas Vegas, NV 891441639408297
- John Collier, MDLas Vegas, NV 891441649229741
- Vishisht Mehta, MDLas Vegas, NV 891441316346430
- George Tu, MDLas Vegas, NV 891441720037898
- John Wojcik, MDLas Vegas, NV 891441467401562
- Rachakonda Prabhu, M.D.Las Vegas, NV 891461538156633
- Michael Schlachter, M.D.Las Vegas, NV 891461073689048
Common questions
What is Walter J. Willoughby, MD's NPI number?
Walter J. Willoughby, MD's National Provider Identifier (NPI) is 1376592477, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter J. Willoughby, MD located?
The NPPES record lists a practice address at 10105 Banburry Cross Dr Ste 355, Las Vegas, NV, 89144. Phone: (702) 409-3069. Providers update this record themselves, so call before visiting.
How can I verify Walter J. Willoughby, MD's license?
NPPES lists Nevada license number 4004, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Walter J. Willoughby, MD prescribe under Medicare Part D?
In 2024, Walter J. Willoughby, MD had 2,761 Medicare Part D claims for 358 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Walter J. Willoughby, MD's MIPS final score?
The 2023 MIPS final score is 74.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.