Quick answers
- Where does Shawn L. Slack see patients?
- Medicare's clinician data lists 6 practice locations, including Bellevue, WA, Shoreline, WA and Everett, WA. Call before your visit to confirm the address.
- What is Shawn L. Slack's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Shawn L. Slack accept Medicare assignment?
- Yes. Medicare's clinician data says Shawn L. Slack 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.
- Does Shawn L. Slack offer telehealth?
- Medicare's clinician data says Shawn L. Slack offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Shawn L. Slack?
- (425) 453-1039, as listed in official Medicare / NPI Registry data.
- What is Shawn L. Slack's NPI number?
- 1306853239. 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 Shawn L. Slack is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1200 112th Ave NE, Suite C160Bellevue, WA 98004 (425) 453‑1039
- 1201 N 175th StShoreline, WA 98133 (425) 339‑4299
- 1330 Rockefeller AveEverett, WA 98201 (425) 259‑0966
- 2901 174th St NEMarysville, WA 98271 (360) 454‑1900
- 3901 Hoyt AveEverett, WA 98201 (425) 339‑5442
Group practices
Medicare enrollment lists Shawn L. Slack as a member of this group (CMS data updated 2026-10-02).
- Optum Care Washington PLLC683 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Bellevue
Clinicians with the same Medicare primary specialty in Bellevue, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1306853239 |
| 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