WASHINGTON GASTROENTEROLOGY PLLC
NPI 1245265826
Clinical Medical Laboratory in Federal Way, WA
About Washington Gastroenterology Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WASHINGTON GASTROENTEROLOGY PLLC (NPI 1245265826) is a healthcare organization registered as a clinical medical laboratory in Federal Way, Washington and active in the NPI registry since July 2006. The organization holds a CLIA Certificate of Compliance certificate valid through April 4, 2028, maintains a secondary practice location in Tacoma, and lists Ralph J Katsman, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Washington Gastroenterology Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
148Medicare enrollment records show 148 clinicians reassign Medicare billing to Washington Gastroenterology PLLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 42 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 6
Nearest to this location (20)
See all 148Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Compliance 50D0712074
Washington Gastroenterology, PLLC · Federal Way, WAFrequently 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 Washington Gastroenterology PLLC's NPI number?
The NPI number for Washington Gastroenterology PLLC is 1245265826. It was assigned to this organization in the NPPES registry on July 11, 2006.
Where is Washington Gastroenterology PLLC located?
Washington Gastroenterology PLLC is located at 33915 1st Way S Ste 203, Federal Way, WA 98003. The listed phone number is (253) 838-9839.
What is Washington Gastroenterology PLLC's specialty?
The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.
Is Washington Gastroenterology PLLC enrolled in Medicare?
Yes. Washington Gastroenterology PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Washington Gastroenterology PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 148 clinicians in 6 Medicare specialties reassign their Medicare billing to Washington Gastroenterology PLLC. A 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 the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (61), Gastroenterology (42) and Nurse Practitioner (30). Of these, 5 practice at this address and 42 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Washington Gastroenterology PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 50D0712074) is associated with this NPI, valid through April 4, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Washington Gastroenterology PLLC was last updated on May 6, 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.
# Washington Gastroenterology Pllc · NPI 1245265826
Clinical Medical Laboratory organization in Federal Way, Washington. Organization record, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1245265826 (Entity type: Organization)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Clinical Medical Laboratory · taxonomy 291U00000X
- **Organization subpart:** No
- **Authorized official:** Ralph Katsman, PRESIDENT
## Practice location
- **Address:** 33915 1ST WAY S STE 203, Federal Way, WA 98003-6396
- **Phone:** (253) 838-9839 · **Fax:** (253) 661-9077
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 148 clinicians in 6 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Certified Registered Nurse Anesthetist (CRNA) (61), Gastroenterology (42), Nurse Practitioner (30); 5 practice at this address and 42 within 10 miles; [full list](https://npiprofile.com/npi/1245265826/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 6, 2021
- **Other identifiers:** Medicaid 7099088 (WA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1245265826) · Data from the CMS NPPES public registry.