Dr. Gary N. Sharpless, MD
Internal Medicine (Internal Medicine Physician)
18059 Highway 105 West, Suite 125
Montgomery, TX 77356
Who else practices at this address →
Montgomery County is a federal mental health shortage area. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Texas Medical School at Houston (1989)
- Years since graduation
- 37
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 402
Licensed in Texas since 1991, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 1989Medical school: University of Texas Medical School at Houston
- 2006Registered 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
-
Internal Medicine Physician primary
TX license H9269 (first issued 1991; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Houston Methodist the Woodlands Hospital The Woodlands, TX
- HCA Houston Healthcare Conroe Conroe, TX
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
- 402
- Services billed
- 59,538
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Injection, testosterone cypionate, 1 mg | 61,000 | 20 |
| Established patient office or other outpatient visit, 30-39 minutes | 1,107 | 426 |
| Injection of drug or substance under skin or into muscle | 383 | 42 |
| Injection, methylprednisolone acetate, 80 mg | 25 | 14 |
| Established patient office or other outpatient visit, 20-29 minutes | 24 | 21 |
| Administration of influenza virus vaccine | 22 | 22 |
| Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 22 | 22 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 21 | 19 |
| Telephone medical discussion with physician, 21-30 minutes | 12 | 12 |
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
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, 5 companies reported 8 payments worth $150 in total to this clinician.
| Lilly USA, LLC | $53.22 |
|---|---|
| AstraZeneca Pharmaceuticals LP | $41.83 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $21.21 |
| Acella Pharmaceuticals, LLC | $17.83 |
| Exact Sciences Corporation | $16.15 |
| Food and Beverage | $150 |
|---|
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.