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

Thomas C. Erdmann, MD

Individual provider Adult Medicine Physician · NPI 1801838040

Thomas C. Erdmann, MD is registered under Family Practice in Vashon, Washington. Graduated from University of Washington School of Medicine in 1991, 35 years ago. Practices with Sea Mar Community Health Centers, a 236-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
35
Trained at
University of Washington School of Medicine
Licensed in
WA
In the registry since
2006
Specialties on file
2
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

10030 SW 210th St
Vashon, WA 98070
Phone: (206) 463-3671
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 24920 104th Ave Se, Kent, WA 98030-6443 — (253) 395-2000
  • 3400 California Ave Sw, Seattle, WA 98116-3307 — (206) 320-3399

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD00031253 (WA)
Adult Medicine Physician Taxonomy 207QA0505X · Licence MD00031253 (WA)

Record details

NPI number1801838040
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESMay 29, 2024
Certification dateJanuary 5, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Sea Mar Community Health Centers — 236 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients100
Services billed 217 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.

  • Highline Medical Center Hospital · Burien, WA
  • St Joseph Medical Center Hospital · Tacoma, WA
  • Swedish Medical Center Hospital · Seattle, WA
  • Tacoma General Allenmore Hospital Hospital · Tacoma, WA
  • Haven Home Health Care Home health agency · Federal Way, WA
  • Providence At Home With Compassus Home Health, King Home health agency · Tukwila, WA
  • Providence At Home With Compassus Hospice Care, Puget Sound Hospice · Tukwila, WA

Colleagues at Sea Mar Community Health Centers

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 236 clinicians in the practice; 12 are shown here.