Provider Profile
Listed in the NPI registry as a nurse practitioner, James N. Demas, ARNP, DNP practices in Seattle, WA. James is also listed as specializing in nurse practitioner — family and registered nurse. According to Medicare claims data, James cared for 118 Medicare patients across 158 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
550 17TH AVE FL 6
Seattle, WA 98122
158 services · 118 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
15 | Less often than most peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
106 | More often than most peers in Nurse Practitioner |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
37 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
James N. Demas, ARNP is a nurse practitioner in Seattle, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
James N. Demas, ARNP is listed at 550 17Th Ave Fl 6, Seattle, WA 98122. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (206) 861-8550. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
James N. Demas, ARNP's National Provider Identifier is 1710612858. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
James N. Demas, ARNP has 4+ years experience. Registered with an NPI since 2022. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, James N. Demas, ARNP provides treatments such as exercise or drug-induced heart stress test with electrocardiogram with supervision by physician, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by James N. Demas, ARNP. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.