Timothy Leonor Tan, D.O.
Pathology (CMS) · Seattle, WA
At a glance
2815 Eastlake Ave E Ste 240, Seattle, WA 98102-3086
NPPES record updated Sep 11, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2815 Eastlake Ave E Ste 240Seattle, WA 98102-3086
Additional reported practice locations
251 E Huron StChicago, IL 606112908
Phone: 3129262000 9750 Sw Nimbus Ave
Beaverton, OR 970087172
Phone: 5039067300
Fax: 5032458219 3131 S State St Ste 309
Ann Arbor, MI 481081658
Phone: 5032458219
Fax: 5032458219 1633 Medical Center Pt
Colorado Springs, CO 809075700
Phone: 5039067300
Fax: 5032458219
Education & affiliations
- Medical / professional school
- Midwestern University, Chicago College Of Osteopathic Med
- Graduation year
- 2013
- CMS specialties
- Pathology
Practice groups
- Christina G Steil Dermatology Ltd
- Curtis T. Thompson, M.d. And Associates, Pllc
- Deerfield Dermatology Associates, Ltd.
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Pathology (CMS)
- Taxonomy code
- 207ZD0900X
- Enumeration date
- May 14, 2013
- Record updated
- Sep 11, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- D.O.
Reported taxonomies and licenses
207ZP0102X
License reported: 02007763A IN
207ZP0102X
License reported: 125064426 IL
207ZD0900X · Primary
License reported: 70062322 WA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2815 Eastlake Ave E Ste 240Seattle, WA 98102-3086
- Phone
- (503) 906-7300
- Fax
- (503) 245-8219
Mailing address
9750 SW NIMBUS AVEBEAVERTON, OR 970087172
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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