Desmoid TumorsMultiple SclerosisPostoperative Complications
Dr. Stephen W. Bayles, MD
NPI1477661080PAC ID0941339279
- Medicare services, 2024
- 380
- Medicare patients, 2024
- 248
- Part D claims, 2024
- 30
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 1100 9th Ave, Seattle, WA 98101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Virginia Mason Medical Center - HOPD
Acute Care Hospital outpatient department · Seattle, Washington
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Dr. Stephen W. Bayles is an otolaryngologist in Seattle, Washington
Dr. Bayles practices at Virginia Mason Medical Center - HOPD in Seattle, Washington.
Dr. Bayles' NPI, 1477661080, was assigned on August 25, 2006. Dr. Bayles graduated from Emory University School of Medicine in 1994. Dr. Bayles holds Washington license MD00042558.
NPI and contact details
- NPI
- 1477661080NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941339279
- NPI enumeration date
- August 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen W. Bayles practices at Virginia Mason Medical Center - HOPD in Seattle, Washington
Dr. Bayles' primary practice is Virginia Mason Medical Center - HOPD, at 1100 9th Ave, Seattle, WA 98101.
- Virginia Mason Medical Center - HOPD1100 9th Ave, Seattle, WA 98101
Source: Dmand AI Affiliation Data
Dr. Stephen W. Bayles is affiliated with 5 sites of care and 2 medical groups
Dr. Bayles' primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Dr. Bayles is also affiliated with Virginia Mason Medical Center. The medical group on file is Virginia Mason Medical Center. Dmand AI also links Dr. Bayles to 2 more group practices and clinics, 1 imaging center and 1 medical group, each named with a free account. Dr. Bayles' employer is on file too: a hospital.
Virginia Mason Medical Center - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen W. Bayles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bayles practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Virginia Mason Medical Center - HOPD | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen W. Bayles is one of 254 otolaryngologists in Washington
Otolaryngology is Dr. Bayles' primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Bayles is licensed in Washington.
Specialties and state licenses
- Otolaryngology, WashingtonPrimary
Otolaryngologists near Dr. Bayles
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen W. Bayles billed Medicare for 380 services in 2024
CMS data shows 380 Medicare services from Dr. Bayles across 10 procedure codes in 2024, for 248 Medicare patients. Medicare paid $67,104 for them.
Medicare services, 2024380
Medicare patients248
Paid by Medicare$67,104
Procedure codes10
Dr. Bayles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2862024: 287No change
- Surgery
- 2023: 612024: 9352%
Where Dr. Bayles' Medicare services took place, 2024
- In an office4813%
- In a facility33287%
Dr. Bayles compared with the Washington median for otolaryngologists, 2024
- Dr. Bayles
- Washington median
- Medicare services
- 380vs 4036% below
- Medicare patients
- 248vs 22510% above
- Part D claims
- 23vs 16086% below
Medians across 241 otolaryngologists in Washington with Dmand AI profiles that report each measure.
Dr. Bayles' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Bayles?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bayles and other otolaryngologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen W. Bayles treated 248 Medicare patients in 2024, average age 74
CMS counts 248 Medicare patients who saw Dr. Bayles in 2024. The largest group is 65 to 74, with 121 patients. 69% of them have high cholesterol, and 67% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bayles' median patient age at 73, with 41% women.
Medicare patients, 2024248
Average age74
Average risk score1.47
Also on Medicaid9%
Dr. Bayles' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bayles' Medicare patients by sex, 2024
- Women11346%
- Men13554%
Chronic conditions among Dr. Bayles' Medicare patients, 2024
- High cholesterol69%
- High blood pressure67%
- Arthritis37%
- Ischemic heart disease29%
- Diabetes23%
- Mood disorders20%
- Depression18%
- Anxiety17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bayles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen W. Bayles wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Bayles wrote 30 Medicare Part D claims for 13 patients. 90% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $640 in total drug cost. In 2016, CMS named 45 claims across 3 drugs.
Part D claims, 202430
Drugs named by CMS2
Total drug cost$640
Part D patients13
Dr. Bayles' Part D claims by kind of drug, 2024
- Generic27 claims90%
- Brand-name and other3 claims10%
Dr. Bayles' most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 452017: 2349%
Drugs named by CMS: 2 in 2017, 3 in 2016.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stephen W. Bayles offers telehealth to Medicare patients
Dr. Bayles accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Bayles as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen W. Bayles has 3 publications on record
Dmand AI links 3 papers to Dr. Bayles, published from 2011 to 2019. The most frequent topics are Postoperative Complications. Dr. Bayles' most frequent co-authors are Peter Angelos, Cassandre Benay, MD and John J. Brandabur, MD.
Papers3
Years published2011 to 2019
Dr. Bayles' papers by year, 2011 to 2019
Topics Dr. Bayles writes about most
- Postoperative Complications
Dr. Bayles' most frequent co-authors
Recent publications by Dr. Bayles
CanadaGraves DiseaseHematoma
CatheterizationEsophageal StenosisEsophagoscopy
See who Dr. Bayles researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bayles works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen W. Bayles received $383 in industry payments from 2023 to 2024
CMS Open Payments shows 3 general payments to Dr. Bayles from 3 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $188.
General payments to Dr. Bayles by program year, 2023 to 2024
Companies that paid Dr. Bayles the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen W. Bayles graduated from Emory University School of Medicine
Dr. Bayles graduated from Emory University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen W. Bayles's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen W. Bayles
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen W. Bayles' NPI number?
Dr. Stephen W. Bayles' NPI number is 1477661080. It was assigned on August 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen W. Bayles?
Dr. Stephen W. Bayles is an otolaryngologist in Seattle, Washington. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Stephen W. Bayles practice?
Dr. Bayles practices at 1100 9th Ave, Seattle, WA 98101. Dr. Bayles' primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Dmand AI also links Dr. Bayles to 2 group practices and clinics, 1 imaging center and 1 medical group.
What is Dr. Stephen W. Bayles' medical license number?
Dr. Bayles holds Washington license MD00042558.
Which hospitals is Dr. Stephen W. Bayles affiliated with?
Dr. Bayles is affiliated with Virginia Mason Medical Center.
What medical group is Dr. Stephen W. Bayles part of?
Dr. Bayles is linked to Virginia Mason Medical Center. Dmand AI links Dr. Bayles to 1 more medical group.
Does Dr. Stephen W. Bayles accept Medicare?
Yes. CMS data shows Dr. Bayles billed Medicare for 380 services in 2024, and Dr. Bayles accepts Medicare assignment.
Does Dr. Stephen W. Bayles offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Bayles as offering telehealth services.
How many Medicare patients does Dr. Stephen W. Bayles see?
CMS counts 248 Medicare patients who saw Dr. Bayles in 2024, with an average age of 74.
What services does Dr. Stephen W. Bayles bill to Medicare?
In 2024, Dr. Bayles' most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and office visit, established patient (99213).
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Where did Dr. Stephen W. Bayles go to medical school?
Dr. Bayles graduated from Emory University School of Medicine in 1994.
What drugs does Dr. Stephen W. Bayles prescribe most?
In 2017 Medicare Part D data, Dr. Bayles' most prescribed drugs by claims were Amoxicillin-Clavulanate Potass and Oxycodone HCl.
Has Dr. Stephen W. Bayles received payments from drug or device companies?
CMS Open Payments shows $383 in general payments to Dr. Bayles from 3 companies from 2023 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Stephen W. Bayles been practicing?
Dr. Bayles graduated from medical school in 1994, 32 years ago.
Does Dr. Stephen W. Bayles do research?
Dmand AI links 3 publications to Dr. Bayles, published from 2011 to 2019.
Who does Dr. Stephen W. Bayles publish with?
Dr. Bayles' most frequent co-authors are Peter Angelos (1 shared paper), Cassandre Benay, MD (1 shared paper) and John J. Brandabur, MD (1 shared paper).
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