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Dr. Michael M. Chen, MD, MS

Neurology (Vascular Neurology Physician)

550 17th Ave
Seattle, WA 98122

Who else practices at this address →

King County includes primary care (5% of residents) and dental (4% of residents) and mental health (4% of residents) shortage areas. About shortage areas

Call (206) 320-2800

  • Medicare participating

At a glance

Years since graduation
11
In the NPI registry since
2015
Medicare patients seen, 2024
302

Licensed in California since 2017, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2015Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Vascular Neurology Physician primary
    WA license MD61056408 (first issued 2020; active)
  • Neurology Physician
    CA license A147040 (first issued 2017; current) · FL license ME143018 · GA license 97067 · IL license 036150014 (first issued 2019; active) · IN license 01083148A · LA license 333179 · MO license 2019043900 · NC license 2020-02778 · OR license MD214065 · TN license 69417 · VA license 0101272681 · WA license MD61056408 (first issued 2020; active) · WI license 3686-320

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Neurology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
302
Services billed
368
Patients’ average age
76
Most frequent Medicare services, 2023
ServiceTimesPatients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes5957
Established patient office or other outpatient visit, 30-39 minutes4139
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes3736
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes3229
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes2424
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes2322
Established patient office or other outpatient visit, 40-54 minutes2121
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes2121
Critical care, first 30-74 minutes1717
Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth1717

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Other Neurology clinicians in Seattle

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 18, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1558757757. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.