Physician Profile
Caroline E. Day, MD
Unclaimed ProfileAbout Dr. Day
Caroline E. Day, MD practices internal medicine in Saint Louis, MO. Caroline is also listed as specializing in family medicine. According to Medicare claims data, Caroline cared for 47 Medicare patients across 65 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (314) 362-3523
- Email not available
Practice Locations
4525 SCOTT AVE STE 3420
Saint Louis, MO 63110
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
65 services · 47 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Hemoglobin a1c level | Lab test | 83036 |
38 |
| Blood glucose (sugar) test performed by hand-held instrument | Lab test | 82962 |
27 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Common questions
What does Dr. Day specialize in?
Dr. Day is an internist in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Day located?
Dr. Day is listed at 4525 Scott Ave Ste 3420, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Day's phone number?
The number on file is (314) 362-3523. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Day's NPI number?
Dr. Day's National Provider Identifier is 1093860652. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Day been practicing?
Dr. Day has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Dr. Day do most often?
According to Medicare billing data, Dr. Day the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Day confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Day. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.