Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William D Lack, MD

Individual provider Orthopaedic Surgery Physician · NPI 1922204635

William D Lack, MD is an Orthopedic Surgery in Seattle, Washington. Graduated from Harvard Medical School in 2007, 19 years ago. Practices with The Association of University Physicians, a 3,459-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
19
Trained at
Harvard Medical School
Licensed in
WA
In the registry since
2007
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

11011 Meridian Ave N Ste 201
Seattle, WA 98133
Phone: (206) 520-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Trauma Physician (primary) Taxonomy 207XX0801X · Licence MD60872422 (WA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence MD60872422 (WA)

Record details

NPI number1922204635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2007
Last updated in NPPESAugust 9, 2018

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2007 (19 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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