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

Mackenzie Howard Holmberg, MD

Individual provider Internal Medicine Physician · NPI 1184253080

Mackenzie Howard Holmberg, MD is a Hospitalist in Seattle, Washington. Graduated from University of Washington School of Medicine in 2020, 6 years ago. Practices with The Association of University Physicians, a 3,459-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
6
Trained at
University of Washington School of Medicine
Licensed in
WA
In the registry since
2020
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

4245 Roosevelt Way NE Fl 3
Seattle, WA 98105-6008
Phone: (206) 598-8750
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 325 9th Ave, Seattle, WA 98104-2420 — (206) 520-5000
  • 1959 Ne Pacific St, Seattle, WA 98195-0001 — (206) 543-3065

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD61057155 (WA)
Hospitalist Physician Taxonomy 208M00000X · Licence MD61057155 (WA)

Record details

NPI number1184253080
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2020
Last updated in NPPESMay 29, 2024
Certification dateMay 29, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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