Stephen W. Bayles, MD
Otolaryngology Physician · Seattle, WA
Stephen W. Bayles, MD is an otolaryngology physician with a practice address in Seattle, Washington, and NPI 1477661080, issued on Aug 25, 2006. Check the license (Washington MD00042558, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Stephen W. Bayles
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- MD00042558 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 9TH Ave, Seattle, WA 98101
- Phone
- (206) 223-6600
- Enumerated
- Aug 25, 2006
- Record last updated
- Jan 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 8368250 WA
- Medicare enrollment
- Enrolled (PECOS I20100525001056); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 305 in Washington → Look up another NPI →
Also registered at 1100 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Steven Adler, MDDiagnostic Ultrasound Physician1639108046
Verify Stephen W. Bayles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00042558Check 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% fewer Medicare Part D claims than the average otolaryngology physician in 2024
30 Medicare Part D claims for 13 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
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: $125.02
1 payment: food and beverage; the largest payer was Stryker Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 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.
One hospital affiliation
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Stephen W. Bayles among 305 otolaryngology physician records in Washington
Stephen W. Bayles, MD is one of 305 otolaryngology physician records with a practice address in Washington. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2007 among the 198 with a school on file
- Record last updated2013 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Washington
There are 305 otolaryngology physician records in Washington.
All 305 in Washington → Every provider in Seattle → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Alana AylwardSeattle, WA 981011790148187
- Jaime Chang, M.D.Seattle, WA 981011366505505
- Geoffrey Deschenes, M.D.Seattle, WA 981011992999825
- Aj Flaherty, M.D.Seattle, WA 981011578940433
- Michael Glenn, MDSeattle, WA 981011255354080
- Corin Kinkhabwala, MDSeattle, WA 981011447874466
- Craig Miller, M.D.Seattle, WA 981011104244854
- Lucy Shi, MDSeattle, WA 981011700310356
Common questions
What is Stephen W. Bayles, MD's NPI number?
Stephen W. Bayles, MD's National Provider Identifier (NPI) is 1477661080, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen W. Bayles, MD located?
The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 223-6600. Providers update this record themselves, so call before visiting.
How can I verify Stephen W. Bayles, MD's license?
NPPES lists Washington license number MD00042558, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen W. Bayles, MD prescribe under Medicare Part D?
In 2024, Stephen W. Bayles, MD had 30 Medicare Part D claims for 13 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.
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.