Dr. John Leo Winfield , MD
Dermatology β’ Bellevue, WA
1551 116th Ave Ne
Bellevue, WA 98004
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1551 116th Ave Ne
Bellevue, WA 98004
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Bellevue and Washington
31 active clinicians are listed under Dermatology with a practice address in Bellevue, WA (384 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Bellevue
6.5% of these 31 clinicians have the CMS telehealth indicator.
58.1% of these 31 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Dermatology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated September 01, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Dermatology Specialists in Bellevue
- Dr. Carla Bauman, MD
- Dr. Dan Lantz, MD
- Dr. Clive Liu, MD
- Dr. Daniel Sugai, MD
- Dr. Edward Esparza, MD
- Dr. Russell Caldwell, MD
Mailing Address
1551 116th Ave Ne
Bellevue, WA 98004
Phone: 4254552275