Quick answers
- Which hospitals does Richard Mattis work at?
- Medicare's official clinician data lists Richard Mattis at 2 hospitals: Kootenai Health and Northwest Specialty Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Richard Mattis see patients?
- Medicare's clinician data lists 11 practice locations, including Waldorf, MD, Colville, WA and Corvallis, OR. Call before your visit to confirm the address.
- What is Richard Mattis's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Richard Mattis accept Medicare assignment?
- Yes. Medicare's clinician data says Richard Mattis 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 Richard Mattis offer telehealth?
- Medicare's clinician data says Richard Mattis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Richard Mattis?
- (509) 684-3701, as listed in official Medicare / NPI Registry data.
- What is Richard Mattis's NPI number?
- 1821040247. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Richard Mattis works
Medicare's Facility Affiliation Data lists Richard Mattis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kootenai HealthCoeur D'alene, ID · Acute Care Hospital · CCN 130049
- Northwest Specialty HospitalPost Falls, ID · Acute Care Hospital · CCN 130066
Practice locations
Addresses where Richard Mattis is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 11355 Pembrooke Sq, Suite 108Waldorf, MD 20603
- 1200 E Columbia AveColville, WA 99114 (509) 684‑3701
- 1318 NW 9th St, Suite BCorvallis, OR 97330
- 16528 E Desmet CtSpokane, WA 99216
- 315 W Dalton Ave, Suite ACoeur D Alene, ID 83815 (208) 209‑2060
Group practices
Medicare enrollment lists Richard Mattis as a member of these groups (CMS data updated 2026-10-02).
- Providence Health and Services Washington784 clinicians in the group
- Ideal Option PLLC91 clinicians in the group
- North Idaho Day Surgery LLC90 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Waldorf
Clinicians with the same Medicare primary specialty in Waldorf, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821040247 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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