Elizabeth Day, DO
Critical Care Medicine (Internal Medicine) Physician · Duluth, MN
Elizabeth Day, DO is a critical care medicine (internal medicine) physician with a practice address in Duluth, Minnesota, and NPI 1578534053, issued on Jan 31, 2006. Check the license (Minnesota 73951, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Day
- Credential
- DO
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 73951 MN
Self-reported in NPPES; status is on the state search - Practice location
- 920 E 1St St Ste 201, Duluth, MN 55805
- Phone
- (218) 249-7970
- Enumerated
- Jan 31, 2006
- Record last updated
- Jul 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20240125002292); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 115 in Minnesota → Look up another NPI →
Also registered at 920 E 1St St Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Casey Brock, P.A.Physician Assistant1881953602
- Michael Chmielewski, MDDermatology Physician1205415692
- Trina Hollatz, M.D.Pulmonary Disease Physician1083804256
- Sandra Rozier, APRNNurse Practitioner1033564331
Verify Elizabeth Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 73951Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
1,066 Medicare Part D claims for 224 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Trelegy Ellipta151 claims
- Albuterol Sulfate Hfa88 claims
- Prednisone74 claims
- Spiriva Respimat48 claims
- Breo Ellipta46 claims
- Montelukast Sodium43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- St. Luke's Hospital OF DuluthDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Day among 115 critical care medicine (internal medicine) physician records in Minnesota
Elizabeth Day, DO is one of 115 critical care medicine (internal medicine) physician records with a practice address in Minnesota. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 71% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1997 · median 2008 among the 86 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Minnesota
There are 115 critical care medicine (internal medicine) physician records in Minnesota.
All 115 in Minnesota → Every provider in Duluth → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Christina Bastin Dejong, MDDuluth, MN 558051306028410
- Jaidev Bhoopal, M.D.Duluth, MN 558051962610956
- Jose Gomez, MD, PHDDuluth, MN 558051194748657
- Jenny Martino, MDDuluth, MN 558051346396538
- Elisabeth McHale, MDDuluth, MN 558051437655651
- Gregory Stroh, MDDuluth, MN 558051023497112
- Eric Swanson, D.O.Duluth, MN 558051437442852
- Christine Wasserman, M.D.Duluth, MN 558051376961169
Common questions
What is Elizabeth Day, DO's NPI number?
Elizabeth Day, DO's National Provider Identifier (NPI) is 1578534053, issued on Jan 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Day, DO located?
The NPPES record lists a practice address at 920 E 1St St Ste 201, Duluth, MN, 55805. Phone: (218) 249-7970. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Day, DO's license?
NPPES lists Minnesota license number 73951, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth Day, DO prescribe under Medicare Part D?
In 2024, Elizabeth Day, DO had 1,066 Medicare Part D claims for 224 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.