Physician Profile
Based in Houston, TX, Arthur L. Day, MD is listed in the NPI registry under neurological surgery. Arthur graduated from Louisiana State University School of Medicine in New Orleans in 1972. Medicare claims data shows Arthur provided 68 services to 62 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and use of operating microscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
6400 FANNIN ST STE 2800 MISCHER NEUROSCIENCE ASSOCIATES
Houston, TX 77030
Within Neurological Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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Movement disorders
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Trauma & injury
Most searched procedures
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68 services · 62 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Use of operating microscope | Procedure | 69990 |
12 | Less often than most peers in Neurological Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
38 | As often as other peers in Neurological Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
18 | Less often than most peers in Neurological Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Day is a neurosurgeon in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurological Surgery”.
NPI registry
Dr. Day is listed at 6400 Fannin St Ste 2800 Mischer Neuroscience Associates, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (713) 486-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Day's National Provider Identifier is 1326109497. 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
Dr. Day attended Louisiana State University School of Medicine in New Orleans, graduating in 1972. This comes from the CMS National Downloadable File.
CMS public data
Dr. Day has 54 years experience. Calculated from a graduation year of 1972, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Day performs procedures including use of operating microscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
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.