Dr. Timothy Leonor Tan , DO
Pathology - Dermatopathology • Seattle, WA
Professional Overview & Biography Verified Profile Summary
Dr. Timothy Tan, DO is a certified Pathology - Dermatopathology practicing in Seattle, WA. With approximately 13 years of clinical experience since graduating from Midwestern University, Chicago College Of Osteopathic Med in 2013, Dr. Tan delivers high-quality medical care to the local community at 2815 EASTLAKE AVE E STE 240.
Dr. Tan maintains professional affiliations with Deerfield Dermatology Associates, Ltd., Curtis T. Thompson, M.D. And Associates, Pllc, Christina G Steil Dermatology Ltd and accepts Medicare assignment.
Frequently performed procedures and clinical services include pathology examination of tissue using a microscope, intermediate complexity, special stained specimen slides to examine tissue, initial procedure, special stained specimen slides to examine tissue. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
2815 Eastlake Ave E Ste 240
Seattle, WA 981023086
Medicare Profile & Education
Midwestern University, Chicago College Of Osteopathic Med
2013
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Pathology - Dermatopathology in Seattle, WA
Practicing in Seattle, WA (8 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
88305
Pathology examination of tissue using a microscope, intermediate complexity
|
682 | 475 | $185.11 | $59.46 |
|
88342
Special stained specimen slides to examine tissue, initial procedure
|
84 | 72 | $214.90 | $106.39 |
|
88341
Special stained specimen slides to examine tissue
|
32 | 17 | $184.47 | $90.81 |
|
88312
Special stained specimen slides to identify organisms including interpretation and report
|
20 | 16 | $253.48 | $113.34 |
|
88304
Pathology examination of tissue using a microscope, moderately low complexity
|
14 | 13 | $75.24 | $36.78 |
Medical Specialties & State Licenses
CMS Verified: 2025-11-26NUCC Taxonomy Code: 207ZD0900X
A dermatopathologist is an expert in diagnosing and monitoring diseases of the skin including infectious, immunologic, degenerative, and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings, and smears of skin lesions by means of light microscopy, electron microscopy, and fluorescence microscopy.
NUCC Taxonomy Code: 207ZP0102X
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
NUCC Taxonomy Code: 207ZP0102X
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
Hospital & Practice Group Affiliations
Curtis T. Thompson, M.d. And Associates, Pllc
9750 Sw Nimbus Ave, Beaverton, OR 970087172
Phone: 5039067300
Deerfield Dermatology Associates, Ltd.
36100 N Brookside Dr, Gurnee, IL 600314572
Phone: 8474800004
Curtis T. Thompson, M.d. And Associates, Pllc
3135 S State St, Ann Arbor, MI 481081653
Phone: 5039067300
Christina G Steil Dermatology Ltd
125 W 2nd St, Hinsdale, IL 605214014
Phone: 6304550045
Secondary Practice Locations
9750 Sw Nimbus Ave
Beaverton, OR 970087172
Phone: 5039067300
3131 S State St Ste 309
Ann Arbor, MI 481081658
Phone: 5032458219
1633 Medical Center Pt
Colorado Springs, CO 809075700
Phone: 5039067300
251 E Huron St
Chicago, IL 606112908
Phone: 3129262000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Dentist - Oral and Maxillofacial Pathology
Doctor of Dental Surgery, Master of Public Health
Dentist - Oral and Maxillofacial Pathology
Doctor of Dental Surgery
Pathology - Dermatopathology
Doctor of Medicine (M.D.)
Pathology - Dermatopathology
Doctor of Medicine (M.D.)
Pathology - Dermatopathology
Doctor of Medicine (M.D.)
Dentist - Oral and Maxillofacial Pathology
Doctor of Dental Medicine, Master of Science
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 2815 EASTLAKE AVE E STE 240, SEATTLE, WA 981023086 (Tel: 5039067300)
Registered at PO BOX 230457, PORTLAND, OR 972810457 (Tel: 5039067300)
Pathology (License #125064426 in IL)
Pathology (License #02007763A in IN)
NPI status registered as active in NPPES database
Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129262000)
Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129262000)
Recorded as TIMOTHY TAN, D.O.
Pathology (License #125064426 in IL)
NPI status registered as active in NPPES database
Registered at 4502 MEDICAL DR, SAN ANTONIO, TX 782294402 (Tel: 2105674724)
Registered at 7703 FLOYD CURL DR, SAN ANTONIO, TX 782293901
Recorded as TIMOTHY TAN, D.O.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
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Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
Po Box 230457
Portland, OR 972810457
Phone: 5039067300
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