Quick answers
- Where does Timothy Tan see patients?
- Medicare's clinician data lists 6 practice locations, including Hinsdale, IL, Ann Arbor, MI and Gurnee, IL. Call before your visit to confirm the address.
- What is Timothy Tan's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Timothy Tan accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy Tan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Timothy Tan?
- (630) 455-0045, as listed in official Medicare / NPI Registry data.
- What is Timothy Tan's NPI number?
- 1205272507. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Timothy Tan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 125 W 2nd StHinsdale, IL 60521 (630) 455‑0045
- 3135 S State St, Suite 309Ann Arbor, MI 48108 (503) 906‑7300
- 36100 N Brookside Dr, Suite 100Gurnee, IL 60031 (847) 480‑0004
- 5157 Main St, Suite 205Downers Grove, IL 60515 (630) 455‑0045
- 707 Lake Cook Rd, Suite 280Deerfield, IL 60015 (847) 480‑0004
Group practices
Medicare enrollment lists Timothy Tan as a member of these groups (CMS data updated 2026-10-02).
- Deerfield Dermatology Associates, Ltd.14 clinicians in the group
- Curtis T. Thompson, M.D. and Associates, PLLC12 clinicians in the group
- Christina G Steil Dermatology Ltd7 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Hinsdale
Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205272507 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians