Quick answers
- Does George L. Grillon accept Medicare assignment?
- Yes. Medicare's clinician data says George L. Grillon 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 George L. Grillon see?
- In 2024, CMS data shows 132 Original Medicare patients and 288 services for George L. Grillon. This counts Original Medicare only and measures volume, not quality.
- What is George L. Grillon's NPI number?
- 1134271711. 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 George L. Grillon, 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 | 132 |
|---|---|
| Services billed to Medicare | 288 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- X-ray of lower jaws, upper jaws and teeth (70355)80 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)53 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)52 services
- Emergency department visit with straightforward medical decision making (99282)27 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)14 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 cholesterol75%
- High blood pressure69%
- Arthritis41%
- Diabetes35%
- Ischemic heart disease29%
- Depression28%
Hospitals where George L. Grillon works
Medicare's Facility Affiliation Data lists George L. Grillon at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Suburban HospitalBethesda, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210022
Practice locations
Addresses where George L. Grillon is enrolled with Medicare (CMS data updated October 2, 2026).
- 10215 Fernwood Rd, Suite 510Bethesda, MD 20817 (410) 857‑9100
- 250 Englar RdWestminster, MD 21157
Specialties
- Maxillofacial Surgeryprimary
- Oral Surgeryalso
Other maxillofacial surgeons in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| School | Univ Of Pennsylvania School Of Dental Medicine |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134271711 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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