Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Tien Thach, MD

Individual provider Anesthesiology Physician · NPI 1013099530

Tien Thach, MD practises Anesthesiology in Seattle, Washington. Graduated from University of Washington School of Medicine in 2006, 20 years ago. Practices with Covenant Medical Center Inc, a 235-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Colorado, Illinois and Washington.

Years since qualifying
20
Trained at
University of Washington School of Medicine
Licensed in
CO, IL, WA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1100 9th Ave
Seattle, WA 98101-2756
Phone: (206) 223-6980
Fax: (206) 223-6982
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1400 E Boulder St Ste 2508, Colorado Springs, CO 80909 — (719) 365-6999
  • 1035 116th Ave Ne, Bellevue, WA 98004-4604 — (206) 240-1879
  • 1035 116th Ave Ne, Bellevue, WA 98004-4604 — (206) 240-1879

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD 60147196 (WA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 18826 (IL)
Anesthesiology Physician Taxonomy 207L00000X · Licence CDR.0000282 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence ML20008755 (WA)

Record details

NPI number1013099530
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 20, 2006
Last updated in NPPESApril 13, 2020
Certification dateApril 13, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Covenant Medical Center Inc — 235 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients144
Services billed 170 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Covenant Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 235 clinicians in the practice; 12 are shown here.

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