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Dr. Chia C. Wang, M.D.

Infectious Disease (Infectious Disease Physician)

1100 9th Ave, G2-id
Seattle, WA 98101

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) 341-0846

  • Medicare participating

At a glance

Years since graduation
36
In the NPI registry since
2006
Medicare patients seen, 2024
116

Licensed in Washington since 1994, according to the Washington State Department of Health. 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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1990Medical school: Northwestern University Feinberg Medical School
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Infectious Disease Physician primary
    WA license MD00032128 (first issued 1994; active)

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

Map: Infectious Disease 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
116
Services billed
420
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes15273
Established patient office or other outpatient visit, 30-39 minutes6634
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes5839
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes4038
Critical care, first 30-74 minutes3314
New patient office or other outpatient visit, 60-74 minutes1616

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.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Entecavir140
Biktarvy (bictegrav/emtricit/tenofov ala)32
Cephalexin
Other prescribers in Seattle, WA
30
Methenamine Hippurate
Other prescribers in Seattle, WA
22
Amoxicillin
Other prescribers in Seattle, WA
22
Prezcobix (darunavir/cobicistat)19
Rifampin16
Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim)
Other prescribers in Seattle, WA
16
Vemlidy (tenofovir alafenamide)16
Tivicay (dolutegravir sodium)16

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Infectious Disease clinicians in Seattle

Sources

NPI registry (CMS NPPES, November 2026; record last updated December 18, 2019), 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 1306955166. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.