NPPES file of Aug 9, 2026

Jonathan Michael Day, M.D.

Diagnostic Radiology Physician · Lake Jackson, TX

Jonathan Michael Day, M.D. is a diagnostic radiology physician with a practice address in Lake Jackson, Texas, and NPI 1083848824, issued on May 7, 2009. Check the license (Texas S9286, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083848824
Name
Jonathan Michael Day
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
S9286 TX
2010-01008 NC
Self-reported in NPPES; status is on the state search
Practice location
100 Medical Dr, Lake Jackson, TX 77566
Phone
(979) 297-9664
Enumerated
May 7, 2009
Record last updated
May 22, 2026
Medicare enrollment
Enrolled (PECOS I20220323003062); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Medical Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brett Baker, PAPhysician Assistant1215956057
  2. Matthew Baker, ARNPFamily Nurse Practitioner1427370972
  3. Ivy Bishop, PA-CPhysician Assistant1427459239
  4. Sandra Blake, CRNACertified Registered Nurse Anesthetist1548456296
  5. Maria Brown, RD/LDRegistered Dietitian1750558912
  6. Sophia Brown, PA-CPhysician Assistant1598420812

Verify Jonathan Michael Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license S9286
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 83.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Deaconess Memorial Medical Center IncHolland, IN
  2. Singleton Associates PALake Jackson, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jonathan Michael Day among 3,124 diagnostic radiology physician records in Texas

Jonathan Michael Day, M.D. is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.

  • NPI issued2009 · 66% of these records are older, 30% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2009 · median 2003 among the 2,277 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 diagnostic radiology physician records list a practice address in Lake Jackson

They are 6 of the 451 NPPES records with a practice address in Lake Jackson, and 3,124 diagnostic radiology physician records in Texas.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Ronald Brociner, MDLake Jackson, TX 775661225001092
  2. Amish Dave, M.D.Lake Jackson, TX 775661477767127
  3. Craig Freedman, M.D.Lake Jackson, TX 775661447226113
  4. John Maxwell, M.D.Lake Jackson, TX 775661902872369
  5. Zita Witte, M.D.Lake Jackson, TX 775661003947565
  6. Fjolla Hyseni VokshiLeague City, TX 775731174400493
  7. Renzo Rajebi, MDLeague City, TX 775731467609438
  8. Azin Aein, MDGalveston, TX 775551467039180

Common questions

What is Jonathan Michael Day, M.D.'s NPI number?

Jonathan Michael Day, M.D.'s National Provider Identifier (NPI) is 1083848824, issued on May 7, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Michael Day, M.D. located?

The NPPES record lists a practice address at 100 Medical Dr, Lake Jackson, TX, 77566. Phone: (979) 297-9664. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Michael Day, M.D.'s license?

NPPES lists Texas license number S9286, 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.

What is Jonathan Michael Day, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.