Dr. Greg N. Smith, MD
Neurology (Neurology Physician)
- Medicare participating
At a glance
- Medical school
- Indiana University School of Medicine (1984)
- Years since graduation
- 42
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 525
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1984Medical school: Indiana University School of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Neurology Physician primary
KY license 25764
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Norton Hospitals, Inc Louisville, KY
- Baptist Health Louisville Louisville, KY
- Baptist Health Hardin Elizabethtown, KY
- Baptist Health Lagrange La Grange, KY
- Baptist Health PAducah Paducah, KY
Medical groups
- Baptist Health Medical Group Inc (2,472 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 525
- Services billed
- 1,079
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Needle measurement of electrical activity in arm or leg muscles, complete study | 476 | 258 |
| Nerve conduction, 5-6 studies | 118 | 118 |
| Nerve conduction, 9-10 studies | 103 | 103 |
| Established patient office or other outpatient visit, 40-54 minutes | 100 | 96 |
| Established patient office or other outpatient visit, 30-39 minutes | 76 | 72 |
| Measurement of brain wave activity (eeg), awake and drowsy | 65 | 64 |
| New patient office or other outpatient visit, 60-74 minutes | 62 | 62 |
| Measurement of brain wave activity (eeg), awake and asleep | 29 | 29 |
| Nerve conduction, 7-8 studies | 25 | 25 |
| New patient office or other outpatient visit, 45-59 minutes | 15 | 15 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Gabapentin Other prescribers in Louisville, KY | 87 |
| Carbidopa-Levodopa (carbidopa/levodopa) Other prescribers in Louisville, KY | 55 |
| Pregabalin Other prescribers in Louisville, KY | 39 |
| Gamunex-C (immune globul g/gly/iga avg 46) | 34 |
| Donepezil Hcl Other prescribers in Louisville, KY | 33 |
| Pyridostigmine Bromide Other prescribers in Louisville, KY | 31 |
| Primidone Other prescribers in Louisville, KY | 18 |
| Memantine Hcl Other prescribers in Louisville, KY | 18 |
| Levetiracetam Other prescribers in Louisville, KY | 17 |
| Tizanidine Hcl Other prescribers in Louisville, KY | 14 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 41 companies reported 138 payments worth $3,954 in total to this clinician.
| Noctrix Health, Inc. | $790 |
|---|---|
| AbbVie Inc. | $515 |
| Eisai Inc. | $304 |
| Takeda Pharmaceuticals U.S.A., Inc. | $296 |
| UCB, Inc. | $265 |
| Monteris Medical Corporation | $184 |
| EMD Serono, Inc. | $129 |
| Catalyst Pharmaceuticals, Inc. | $118 |
| Food and Beverage | $3,852 |
|---|---|
| Education | $102 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Janssen Biotech, Inc. Nov 26, 2025 | Education in-kind | $83.99 |
| Janssen Pharmaceuticals, Inc Aug 6, 2025 | Education in-kind | $17.90 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.