John F. Day Jr., DDS

  • Baton Rouge, LA
  • Dentist
NPI1336261122
Part D claims, 2024
197
Industry payments
$11
Affiliated sites
2
Medical group
1
State license
1
Practice address
3140 Florida St, Baton Rouge, LA 70806
Practice phone
Call (225) 650-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

CareSouth Mobile Dental Unit

FQHC - Satellite Clinic · Baton Rouge, Louisiana

See all 3 affiliations

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John F. Day Jr. is a dentist in Baton Rouge, Louisiana

John Day practices at CareSouth Mobile Dental Unit in Baton Rouge, Louisiana.

John Day's NPI, 1336261122, was assigned on April 4, 2007. John Day holds Louisiana license LA 4061.

NPI and contact details
NPI enumeration date
April 4, 2007
NPI status
Active
Practice phone
(225) 650-2000
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

John F. Day Jr. practices at CareSouth Mobile Dental Unit in Baton Rouge, Louisiana

John Day's primary practice is CareSouth Mobile Dental Unit, at 3140 Florida St, Baton Rouge, LA 70806 in East Baton Rouge Parish. The practice phone is (225) 650-2000.

  • CareSouth Mobile Dental Unit
    3140 Florida St, Baton Rouge, LA 70806 · East Baton Rouge ParishPhone(225) 650-2000

Source: Dmand AI Affiliation Data

John F. Day Jr. is affiliated with 2 sites of care and 1 medical group

John Day's primary practice is CareSouth Mobile Dental Unit in Baton Rouge, Louisiana. The medical group on file is CareSouth Medical & Dental. Dmand AI also links John Day to 1 more group practice or clinic, named with a free account. John Day's employer is on file too: a community health center (fqhc).

See all 3 affiliations for John Day

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at John F. Day Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where John Day practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
CareSouth Mobile Dental UnitAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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John F. Day Jr. is one of 364 dentists in Louisiana

Dentist is John Day's primary specialty in the NPI Registry, under taxonomy code 122300000X. John Day is licensed in Louisiana.

Specialties and state licenses

  • Dentist, LouisianaPrimaryLicense LA 4061 · taxonomy 122300000X

Dentists near John Day

Counts of dentists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

John F. Day Jr.'s patients have a median age of 69

Across all payers, Dmand AI patient panel data puts John Day's median patient age at 69, with 65% women.

John Day's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women65%
  • Men34%

Source: Dmand AI Patient Panel Data

John F. Day Jr. wrote 197 Medicare Part D claims in 2024

In 2024, John Day wrote 197 Medicare Part D claims for 69 patients. 99% of them were for generic drugs.

Part D claims, 2024197
Part D patients69

John Day's Part D claims by kind of drug, 2024

  • Generic195 claims99%
  • Brand-name and other2 claims1%

Drug classes CMS tracks in John Day's Part D claims, 2024

  • Opioids42%82 of 197 claims
  • Antibiotics23%46 of 197 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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John F. Day Jr. received $11 in industry payments in 2025

CMS Open Payments shows 1 general payment to John Day from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. VOCO America Inc. paid the most, $11.

Companies that paid John Day the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to John Day

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for John F. Day Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about John F. Day Jr.

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is John F. Day Jr.'s NPI number?

John F. Day Jr.'s NPI number is 1336261122. It was assigned on April 4, 2007, and it is active in the NPI Registry.

What does John F. Day Jr. specialize in?

John F. Day Jr. is a dentist in Baton Rouge, Louisiana. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).

Where does John F. Day Jr. practice?

John Day practices at 3140 Florida St, Baton Rouge, LA 70806. John Day's primary practice is CareSouth Mobile Dental Unit in Baton Rouge, Louisiana. Dmand AI also links John Day to 1 group practice or clinic.

What is John F. Day Jr.'s office phone number?

The practice phone on file for John Day is (225) 650-2000.

What is John F. Day Jr.'s medical license number?

John Day holds Louisiana license LA 4061.

What medical group is John F. Day Jr. part of?

John Day is linked to CareSouth Medical & Dental.

Has John F. Day Jr. received payments from drug or device companies?

CMS Open Payments shows $11 in general payments to John Day from 1 company from 2025 to 2025. The largest total came from VOCO America Inc.

How long has John F. Day Jr. been practicing?

John Day's NPI was assigned in 2007.

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