Seth Gillham, M.D.
NPI 1588944847 · Diagnostic Radiology Physician · Walla Walla, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Gillham, M.D. is a Diagnostic Radiology Physician provider in Walla Walla, WA (NPI 1588944847).
Provider details
- NPI number
- 1588944847
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
5,421 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 785 | $35 |
| X-Ray of Chest, 2 Views71046 | 491 | $10 |
| X-Ray of Chest, 1 View71045 | 462 | $8 |
| Screening 3d Breast Mammography77063 | 424 | $28 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 385 | $84 |
| X-Ray of Chest, 2 Views71046 | 232 | $27 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Practice location
Mailing address
Additional practice locations (1)
- 801 S Stevens StSpokane, WA 99204-2654Phone: (509) 363-7788Fax: (509) 363-7064
Registry dates
- Enumerated
- 2011-08-18
- Last updated
- 2021-05-20
- Certified
- 2021-05-20
Frequently asked questions
- What is Seth Gillham's NPI number?
- Seth Gillham's National Provider Identifier (NPI) is 1588944847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Gillham's specialty?
- Seth Gillham is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Seth Gillham located?
- Seth Gillham's practice location on file with NPPES is 401 W Poplar St, Walla Walla, WA 99362-2846.
- What is Seth Gillham's phone number?
- The practice phone number listed in the NPPES registry for Seth Gillham is (509) 897-5850.
- Does Seth Gillham accept Medicare?
- Seth Gillham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Gillham's NPI active?
- Yes — Seth Gillham's NPI (1588944847) is active in the NPPES registry as of the last update on 2021-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.