Jeffrey L. Day, MD
Pediatrics Physician · Denton, TX
Jeffrey L. Day, MD is a pediatrics physician with a practice address in Denton, Texas, and NPI 1316027253, issued on Oct 16, 2006. Check the license (Texas L1309, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jeffrey L. Day
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- L1309 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3304 Colorado Blvd Ste 10, Denton, TX 76210
- Phone
- (940) 565-1510
- Enumerated
- Oct 16, 2006
- Record last updated
- Apr 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (940) 243-0607
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 5,641 in Texas → Look up another NPI →
Verify Jeffrey L. Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L1309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average pediatrics physician in 2024
22 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
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.
Jeffrey L. Day among 5,641 pediatrics physician records in Texas
Jeffrey L. Day, MD is one of 5,641 pediatrics physician records with a practice address in Texas. 47% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 47% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 pediatrics physician records list a practice address in Denton
They are 27 of the 2,554 NPPES records with a practice address in Denton, and 5,641 pediatrics physician records in Texas.
All 5,641 in Texas → Every provider in Denton → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Parmbir Shalini Bhangoo, M.D.Denton, TX 762101902018922
- Karri Dutton, MDCorinth, TX 762101366545709
- Karen Goff, MDDenton, TX 762101164502092
- David Goff, MDDenton, TX 762101912087842
- Christy Guiley, PADenton, TX 762101225542574
- Ronda McDowell, M.D.Corinth, TX 762101821174525
- Anna Nezafati, MDDenton, TX 762101215178124
- Marquis Nuby, M.D.Denton, TX 762101639124035
Common questions
What is Jeffrey L. Day, MD's NPI number?
Jeffrey L. Day, MD's National Provider Identifier (NPI) is 1316027253, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey L. Day, MD located?
The NPPES record lists a practice address at 3304 Colorado Blvd Ste 10, Denton, TX, 76210. Phone: (940) 565-1510. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey L. Day, MD's license?
NPPES lists Texas license number L1309, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jeffrey L. Day, MD prescribe under Medicare Part D?
In 2024, Jeffrey L. Day, MD had 22 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.