DR. NICHOLAS CHRISTOPHER MARKADAKIS MD
NPI 1639673544
Emergency Medicine in Auburn, WA
About Dr. Nicholas Christopher Markadakis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAS CHRISTOPHER MARKADAKIS MD (NPI 1639673544) is an individual emergency medicine provider in Auburn, Washington, licensed in Washington (MD61224889) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Multicare Auburn Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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. Nicholas Christopher Markadakis Md 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
3Medicare enrollment records show Nicholas Markadakis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Auburn, WA 98001
- Reassigned Medicare billing, Washington enrollment
- 25 clinicians in this Medicare group
Sedro Woolley, WA 98284
- Reassigned Medicare billing, Washington enrollment
- 139 clinicians in this Medicare group
Las Vegas, NV 89149
- Reassigned Medicare billing, Nevada enrollment
- 522 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Multicare Auburn Medical Center
Acute Care Hospitals · Auburn, WAOlympic Medical Center
Acute Care Hospitals · Port Angeles, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98001 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
AUBURN, WA 98001
AUBURN, WA 98001
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 Nicholas Markadakis's NPI number?
The NPI number for Nicholas Markadakis is 1639673544. It was assigned to this individual provider in the NPPES registry on March 23, 2018.
Where is Nicholas Markadakis located?
Nicholas Markadakis practices at 202 N Division St, Auburn, WA 98001. The listed phone number is (253) 833-7711.
What is Nicholas Markadakis's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nicholas Markadakis enrolled in Medicare?
Yes. Nicholas Markadakis 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 Nicholas Markadakis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Markadakis reassigns Medicare benefits to 3 organizations: Cascade Emergency Physicians Inc. (Auburn, WA), Sound Physicians Emergency Medicine Of Washington PLLC (Sedro Woolley, WA) and University Medical Center Of Southern Nevada (Las Vegas, NV). 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 Nicholas Markadakis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nicholas Markadakis affiliated with any hospitals?
According to CMS data, Nicholas Markadakis is affiliated with Multicare Auburn Medical Center and Olympic Medical Center.
When was this NPI record last updated?
The NPPES record for Nicholas Markadakis was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Nicholas Christopher Markadakis, MD · NPI 1639673544
Emergency Medicine physician in Auburn, Washington. Individual provider, active in the CMS NPPES registry since March 23, 2018.
## Identity
- **NPI:** 1639673544 (Entity type: Individual)
- **Enumerated:** March 23, 2018
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD61224889 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 202 N DIVISION ST, Auburn, WA 98001-4939
- **Phone:** (253) 833-7711
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cascade Emergency Physicians Inc. (NPI 1225060734, Auburn, WA); Sound Physicians Emergency Medicine Of Washington PLLC (NPI 1629532064, Sedro Woolley, WA); University Medical Center Of Southern Nevada (NPI 1891357901, Las Vegas, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** May 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1639673544) · Data from the CMS NPPES public registry.