Arthur L. Day, MD
Neurological Surgery Physician · Houston, TX
Arthur L. Day, MD is a neurological surgery physician with a practice address in Houston, Texas, and NPI 1326109497, issued on Dec 13, 2006. Check the license (Texas 43964, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Arthur L. Day
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License numbers
- 43964 TX
214475 MA
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Fannin St Ste 2800, Houston, TX 77030
- Phone
- (713) 486-8000
- Enumerated
- Dec 13, 2006
- Record last updated
- Jan 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (713) 486-8088
- Medicare enrollment
- Enrolled (PECOS I20100831000408); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1972
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 669 in Texas → Look up another NPI →
Also registered at 6400 Fannin St Ste 2800
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christina Abi Faraj, MDStudent in an Organized Health Care Education/Training Program1346182219
- Zaki Abou Mrad, MDStudent in an Organized Health Care Education/Training Program1033903323
- Nicholas Ahye, M.D.Neurological Surgery Physician1578978946
- Nida Ali, NPAcute Care Nurse Practitioner1538028477
- Mark Amsbaugh, M.D.Radiation Oncology Physician1245598168
- Jonathan Bentley, MDStudent in an Organized Health Care Education/Training Program1841130945
Verify Arthur L. Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license 43964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average neurological surgery physician in 2024
41 Medicare Part D claims for 25 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.
Most prescribed
- Levetiracetam21 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
- UT PhysiciansHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arthur L. Day among 669 neurological surgery physician records in Texas
Arthur L. Day, MD is one of 669 neurological surgery physician records with a practice address in Texas. 80% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 57% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1972 · median 2004 among the 451 with a school on file
- Record last updated2020 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Texas
There are 669 neurological surgery physician records in Texas.
All 669 in Texas → Every provider in Houston → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Alfonso Aldama, MDHouston, TX 770301164415170
- David Cech, MDHouston, TX 770301548254667
- Bruce Ehni, MDHouston, TX 770301205820446
- Richard Harper, MDHouston, TX 770301174516116
- Paul Holman, M.D.Houston, TX 770301386698314
- Dong Kim, MDHouston, TX 770301043292550
- Thomas Luerssen, M.D.Houston, TX 770301245233808
- Jacques Morcos, M.D., F.R.C.S.Houston, TX 770301205899937
Common questions
What is Arthur L. Day, MD's NPI number?
Arthur L. Day, MD's National Provider Identifier (NPI) is 1326109497, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arthur L. Day, MD located?
The NPPES record lists a practice address at 6400 Fannin St Ste 2800, Houston, TX, 77030. Phone: (713) 486-8000. Providers update this record themselves, so call before visiting.
How can I verify Arthur L. Day, MD's license?
NPPES lists Texas license number 43964, 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 Arthur L. Day, MD prescribe under Medicare Part D?
In 2024, Arthur L. Day, MD had 41 Medicare Part D claims for 25 beneficiaries; the average among neurological surgery physician prescribers was 172. 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.