Stephen Tilles, M.D.
NPI 1417984956 · Allergy & Immunology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Tilles, M.D. is a Allergy & Immunology Physician provider in Seattle, WA (NPI 1417984956).
Provider details
- NPI number
- 1417984956
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00038961 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$83 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2016-12-07
Frequently asked questions
- What is Stephen Tilles's NPI number?
- Stephen Tilles's National Provider Identifier (NPI) is 1417984956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Tilles's specialty?
- Stephen Tilles is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Tilles located?
- Stephen Tilles's practice location on file with NPPES is 9725 3rd Ave Ne Ste 500, Seattle, WA 98115-2024.
- What is Stephen Tilles's phone number?
- The practice phone number listed in the NPPES registry for Stephen Tilles is (206) 527-1200.
- Does Stephen Tilles accept Medicare?
- Stephen Tilles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Tilles's NPI active?
- Yes — Stephen Tilles's NPI (1417984956) is active in the NPPES registry as of the last update on 2016-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.