Quick answers
- Does Gregory A. Charlton accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory A. Charlton accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gregory A. Charlton see?
- In 2024, CMS data shows 179 Original Medicare patients and 222 services for Gregory A. Charlton. This counts Original Medicare only and measures volume, not quality.
- What is Gregory A. Charlton's NPI number?
- 1386675270. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gregory A. Charlton, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 179 |
|---|---|
| Services billed to Medicare | 222 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)101 services
- Sleep study in sleep lab (6 years or older) (95810)73 services
- Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation (G0399)39 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Ischemic heart disease33%
- Diabetes32%
- Anxiety30%
Practice locations
Addresses where Gregory A. Charlton is enrolled with Medicare (CMS data updated October 2, 2026).
- 2437 S Telshor BlvdLas Cruces, NM 88011 (575) 522‑2777
Group practices
Medicare enrollment lists Gregory A. Charlton as a member of this group (CMS data updated October 2, 2026).
- Sleep Lab of Las Cruces LLC3 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in New Mexico
Clinicians with the same Medicare primary specialty in New Mexico — not a recommendation.
Other clinicians in Sleep Lab of Las Cruces LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386675270 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians