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

Hillary Day Lum, MD, PHD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1336301191

Hillary Day Lum, MD, PHD is a Geriatric Medicine in Aurora, Colorado. Graduated from University of Wisconsin School of Medicine in 2008, 18 years ago. Practices with University Physicians Incorporated, a 3,148-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
18
Trained at
University of Wisconsin School of Medicine
Licensed in
CO
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

12605 E 16th Ave
Aurora, CO 80045-2545
Phone: (720) 848-0000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 49904 (CO)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence 49904 (CO)

Record details

NPI number1336301191
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJuly 1, 2008
Last updated in NPPESAugust 6, 2014

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice University Physicians Incorporated — 3148 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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