Doctor profile · Federal record

Dr. Nicholas Markadakis, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Auburn, WA

  • NPI 1639673544
  • Accepts Medicare
  • MIPS 99.8 / 100 · 2023
  • 8 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
202 N Division St
Auburn, WA 980014939
(253) 833-7711
Additional location
939 Caroline St
Port Angeles, WA 983623997
(360) 417-7000
Mailing address
300 Lenora Street Pmb 6394
Seattle, WA 981212411

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Profile last updated
December 3, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Washington #MD61224889 · Maryland #D92039

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639673544. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
300
Distinct HCPCS
7
Medicare allowed
$32,988
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 67 64 $9
99291 Critical care, first 30-74 minutes 55 55 $223
93042 Electrocardiogram (ecg) 1 to 3 leads with review by physician only 50 50 $7
99285 Emergency department visit with high level of medical decision making 50 49 $181
99284 Emergency department visit with moderate level of medical decision making 35 34 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 29 29 $183
99283 Emergency department visit with low level of medical decision making 14 13 $74

In context: peer comparison

Among 6 peers in Auburn Emergency Medicine Physician, average services per provider: 51. This provider delivers 5.9× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas Markadakis's medical specialty?
Dr. Nicholas Markadakis practices Emergency Medicine Physician in Auburn, WA.
Where does Dr. Nicholas Markadakis practice?
Dr. Nicholas Markadakis practices at 202 N Division St, Auburn, WA 980014939. Office phone: 2538337711.
What is Dr. Nicholas Markadakis's NPI?
Dr. Nicholas Markadakis's National Provider Identifier (NPI) is 1639673544, issued by NPPES.
Does Dr. Nicholas Markadakis accept Medicare assignment?
Yes. Dr. Nicholas Markadakis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicholas Markadakis commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291); Electrocardiogram (ecg) 1 to 3 leads with review by physician only (HCPCS 93042). Source: CMS Medicare Physician & Other Practitioners file.