DR. SETH BRIAN GILLHAM M.D.
NPI 1588944847
Radiology - Diagnostic Radiology in Walla Walla, WA

Active since August 18, 2011PECOS EnrolledAccepts Medicare Assignment
401 W POPLAR ST, WALLA WALLA, WA 99362(509) 897-5850 Get Directions Write a Review

NPPES record last updated: May 20, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 20, 2021, Jan 13, 2017 (2 updates tracked since 2017).

About Dr. Seth Brian Gillham M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SETH BRIAN GILLHAM M.D. (NPI 1588944847) is an individual diagnostic radiology provider in Walla Walla, Washington, licensed in Washington (MD60703695) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and maintains a secondary practice location in Spokane.

NPPES Registry Identity

NPI1588944847
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. SETH BRIAN GILLHAMCredential: M.D.
Location Address401 W POPLAR STWalla Walla, WA 99362-2846
Mailing Address401 W Poplar StWalla Walla, WA 99362-2846 · (509) 897-5850
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2011
Enumeration DateAugust 18, 2011
Last NPPES UpdateMay 20, 20212 updates tracked since enumeration
NPPES CertifiedMay 20, 2021
✔ NPI 1588944847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in WA · MD60703695
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
401 W POPLAR ST, Walla Walla, WA 99362

Secondary Practice Location 1

Location 1801 S Stevens StSpokane, WA 99204-2654 · Phone (509) 363-7788 · Fax (509) 363-7064

Other Identifiers 1

Medicaid2069878WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Seth Brian Gillham M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032417589
PECOS Enrollment IDI20170110002677, I20210624001219, I20230202000237
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

12

Medicare enrollment records show Seth Gillham reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Primary Care
295 S COLLEGE AVE STE 1
College Place, WA 99324
  • Reassigned Medicare billing, Washington enrollment
  • Also billed through NPI 1134128911 (Washington)
  • 160 clinicians in this Medicare group
Clinic/Center
4008 W 27TH AVE, SUITE 103
Kennewick, WA 99337
  • Reassigned Medicare billing, Washington enrollment
  • 454 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
605 S COOLIDGE ST
Moses Lake, WA 98837
  • Reassigned Medicare billing, Washington enrollment
  • 134 clinicians in this Medicare group
Emergency Medical Services
200 NAT WASHINGTON WAY
Ephrata, WA 98823
  • Reassigned Medicare billing, Washington enrollment
  • Medicare enrollment name: Grant County Public Hospital District No. 3
  • 144 clinicians in this Medicare group
Emergency Medical Services
908 10TH AVE SW
Quincy, WA 98848
  • Reassigned Medicare billing, Washington enrollment
  • Medicare enrollment name: Grant County Hospital District No. 2
  • 141 clinicians in this Medicare group
Diagnostic Radiology
801 S STEVENS ST
Spokane, WA 99204
  • Reassigned Medicare billing, Montana, Oregon and Washington enrollments
  • Also billed through NPI 1205189461 (Oregon)
  • 130 clinicians in this Medicare group
Diagnostic Radiology
525 S COWLEY ST
Spokane, WA 99202
  • Reassigned Medicare billing, Montana, Oregon and Washington enrollments
  • 120 clinicians in this Medicare group
Critical Access
507 HOSPITAL WAY
Brewster, WA 98812
  • Reassigned Medicare billing, Washington enrollment
  • Also billed through NPI 1043363591 (Washington)
  • 238 clinicians in this Medicare group
Diagnostic Radiology
1200 12TH AVE S
Seattle, WA 98144
  • Reassigned Medicare billing, Montana, Oregon and Washington enrollments
  • 129 clinicians in this Medicare group
Multi-Specialty
444 NW ELKS DR
Corvallis, OR 97330
  • Reassigned Medicare billing, Oregon and Washington enrollments
  • 162 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 69

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
3,175 services35 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
785 services785 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
491 services483 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
462 services449 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
424 services424 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
385 services383 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St. Patrick Hospital

Acute Care Hospitals · Missoula, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number270014
Location500 W BroadwayMissoula, MT 59806 · Missoula County
Emergency services Birthing friendly

St Anthony Hospital

Critical Access Hospitals · Pendleton, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number381319
Location2801 St Anthony WayPendleton, OR 97801 · Umatilla County
Emergency services Birthing friendly

Providence St Mary Medical Center

Acute Care Hospitals · Walla Walla, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500002
Location401 W Poplar StWalla Walla, WA 99362 · Walla Walla County
Emergency services Birthing friendly

Prov Sacred Hrt Med Ctr & Childs Hosp.

Acute Care Hospitals · Spokane, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500054
Location101 West 8th AvenueSpokane, WA 99204 · Spokane County
Emergency services Birthing friendly

Kadlec Regional Medical Center

Acute Care Hospitals · Richland, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500058
Location888 Swift BlvdRichland, WA 99352 · Benton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
401 W POPLAR ST, SLEEP MEDICINE CENTER
WALLA WALLA, WA 99362
Registered Nurse
401 W POPLAR ST
WALLA WALLA, WA 99362
Anesthesiology
401 W POPLAR ST
WALLA WALLA, WA 99362
Pharmacist
401 W POPLAR ST
WALLA WALLA, WA 99362
Occupational Therapist
401 W POPLAR ST
WALLA WALLA, WA 99362
Occupational Therapy Assistant
401 W POPLAR ST, REBAB SERVICE
WALLA WALLA, WA 99362
Physical Medicine & Rehabilitation
401 W POPLAR ST
WALLA WALLA, WA 99362
Emergency Medicine
401 W POPLAR ST, PSMMC ER
WALLA WALLA, WA 99362

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Seth Gillham's NPI number?

The NPI number for Seth Gillham is 1588944847. It was assigned to this individual provider in the NPPES registry on August 18, 2011.

Where is Seth Gillham located?

Seth Gillham practices at 401 W Poplar St, Walla Walla, WA 99362. The listed phone number is (509) 897-5850.

What is Seth Gillham's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Seth Gillham enrolled in Medicare?

Yes. Seth Gillham is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Seth Gillham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seth Gillham reassigns Medicare benefits to 12 organizations: Columbia County Hospital District (College Place, WA), Kadlec Regional Medical Center (Kennewick, WA), Moses Lake Community Health Center (Moses Lake, WA), Grant County Public Hospital District 3 (Ephrata, WA), Grant County Public Hospital District 2 (Quincy, WA) and 7 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Seth Gillham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Seth Gillham affiliated with any hospitals?

According to CMS data, Seth Gillham is affiliated with St. Patrick Hospital, St Anthony Hospital, Providence St Mary Medical Center, Prov Sacred Hrt Med Ctr & Childs Hosp. and Kadlec Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Seth Gillham was last updated on May 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.