Doctor profile · Federal record

Dr. Mathew Day, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Grand Island, NE

  • NPI 1619357191
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
729 N Custer Ave
Grand Island, NE 688034311
(308) 382-9266
fax (308) 382-5290
Mailing address
988102 Nebraska Medical Ctr
Omaha, NE 681988102

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
January 29, 2019
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Nebraska #30968

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619357191. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
565
Distinct HCPCS
6
Medicare allowed
$57,283
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 195 97 $110
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 180 87 $73
99239 Hospital discharge day management, more than 30 minutes 70 69 $106
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 58 57 $161
99238 Hospital discharge day management, 30 minutes or less 35 35 $75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 27 27 $120

In context: peer comparison

Among 6 peers in this city , average services per provider: 133. This provider delivers 4.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
173
Patients
98
Total drug cost
$9,150
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 28 0 $289
Furosemide Generic 19 17 $135
Amlodipine Besylate Generic 18 14 $81
Doxycycline Hyclate Generic 15 14 $208
Potassium Chloride Generic 15 15 $413
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $119
Eliquis (Apixaban) Brand 14 0 $6,160
Mirtazapine Generic 14 0 $269
Prednisone Generic 13 13 $48
Levetiracetam Generic 12 0 $1,382

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mathew Day's medical specialty?
Dr. Mathew Day practices Internal Medicine Physician in Grand Island, NE.
Where does Dr. Mathew Day practice?
Dr. Mathew Day practices at 729 N Custer Ave, Grand Island, NE 688034311. Office phone: 3083829266.
What is Dr. Mathew Day's NPI?
Dr. Mathew Day's National Provider Identifier (NPI) is 1619357191, issued by NPPES.
Does Dr. Mathew Day accept Medicare assignment?
Yes. Dr. Mathew Day accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mathew Day commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.