DR. CHALERMKIAT THANASAWAT M.D.
NPI 1255507877
Emergency Medicine in Covington, WA
About Dr. Chalermkiat Thanasawat M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHALERMKIAT THANASAWAT M.D. (NPI 1255507877) is an individual emergency medicine provider in Covington, Washington, licensed in Washington (MD61069902) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Sanford Bemidji Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
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. Chalermkiat Thanasawat 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.
Medicare Billing Reassignments
7Medicare enrollment records show Chalermkiat Thanasawat reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Renton, WA 98055
- Reassigned Medicare billing, Washington enrollment
- 689 clinicians in this Medicare group
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 519 clinicians in this Medicare group
Sedro Woolley, WA 98284
- Reassigned Medicare billing, Washington enrollment
- 139 clinicians in this Medicare group
South Bend, WA 98586
- Reassigned Medicare billing, Washington enrollment
- 104 clinicians in this Medicare group
Clearbrook, MN 56634
- Reassigned Medicare billing, Minnesota enrollment
- 607 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Lufkin, TX 75904
- Reassigned Medicare billing, Texas enrollment
- 89 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 9
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sanford Bemidji Medical Center
Acute Care Hospitals · Bemidji, MNIsland Hospital
Acute Care Hospitals · Anacortes, WAValley Medical Center
Acute Care Hospitals · Renton, WASt Elizabeth Hospital
Critical Access Hospitals · Enumclaw, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98042 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Chalermkiat Thanasawat's NPI number?
The NPI number for Chalermkiat Thanasawat is 1255507877. It was assigned to this individual provider in the NPPES registry on May 3, 2008.
Where is Chalermkiat Thanasawat located?
Chalermkiat Thanasawat practices at 27500 168th Pl SE, Covington, WA 98042. The listed phone number is (425) 690-3435.
What is Chalermkiat Thanasawat's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Chalermkiat Thanasawat enrolled in Medicare?
Yes. Chalermkiat Thanasawat 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 Chalermkiat Thanasawat's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chalermkiat Thanasawat reassigns Medicare benefits to 7 organizations: Valley Medical Group-Renton (Renton, WA), Northwest Emergency Physicians LLC (Arlington, WA), Sound Physicians Emergency Medicine Of Washington PLLC (Sedro Woolley, WA), Pacific County Hospital District 2 (South Bend, WA), Sanford Health Of Northern Minnesota (Clearbrook, MN) and 2 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 Chalermkiat Thanasawat's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chalermkiat Thanasawat accept?
Health plans from Blue Cross Blue Shield of North Dakota, Oscar Health, Oscar Insurance Company, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Chalermkiat Thanasawat as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Chalermkiat Thanasawat affiliated with any hospitals?
According to CMS data, Chalermkiat Thanasawat is affiliated with Sanford Bemidji Medical Center, Island Hospital, Valley Medical Center and St Elizabeth Hospital.
When was this NPI record last updated?
The NPPES record for Chalermkiat Thanasawat was last updated on February 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Dr. Chalermkiat Thanasawat, M.D. · NPI 1255507877
Emergency Medicine physician in Covington, Washington. Individual provider, active in the CMS NPPES registry since May 3, 2008.
## Identity
- **NPI:** 1255507877 (Entity type: Individual)
- **Enumerated:** May 3, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD61069902 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 27500 168TH PL SE, Covington, WA 98042-5563
- **Phone:** (425) 690-3435 · **Fax:** (425) 690-9435
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Valley Medical Group-Renton (NPI 1619209574, Renton, WA); Northwest Emergency Physicians LLC (NPI 1235172370, Arlington, WA); Sound Physicians Emergency Medicine Of Washington PLLC (NPI 1629532064, Sedro Woolley, WA); Pacific County Hospital District 2 (NPI 1295708683, South Bend, WA); Sanford Health Of Northern Minnesota (NPI 1457624272, Clearbrook, MN); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** February 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1255507877) · Data from the CMS NPPES public registry.