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

Mathew Boyd Day, MD

Individual provider Internal Medicine Physician · NPI 1619357191

Mathew Boyd Day, MD is an Internal Medicine in Grand Island, Nebraska. Graduated from University of Nebraska College of Medicine in 2015, 11 years ago. Practices with CHI Health Clinic Specialty LLC, a 312-clinician group and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
11
Trained at
University of Nebraska College of Medicine
Licensed in
NE
In the registry since
2015
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

729 N Custer Ave
Grand Island, NE 68803-4311
Phone: (308) 382-9266
Fax: (308) 382-5290
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 30968 (NE)

Record details

NPI number1619357191
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2015
Last updated in NPPESJanuary 29, 2019
Mailing address988102 Nebraska Medical Ctr, Omaha, NE 68198-8102

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Chi Health Clinic Specialty Llc — 312 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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