Quick answers
- Does Nagi M. Demian accept Medicare assignment?
- Yes. Medicare's clinician data says Nagi M. Demian 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 Nagi M. Demian see?
- In 2024, CMS data shows 49 Original Medicare patients and 102 services for Nagi M. Demian. This counts Original Medicare only and measures volume, not quality.
- What is Nagi M. Demian's NPI number?
- 1043249287. 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 Nagi M. Demian, 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 | 49 |
|---|---|
| Services billed to Medicare | 102 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)39 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 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%
- Arthritis51%
- Ischemic heart disease45%
- Anxiety33%
- Diabetes27%
Hospitals where Nagi M. Demian works
Medicare's Facility Affiliation Data lists Nagi M. Demian 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.
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450358
Practice locations
Addresses where Nagi M. Demian is enrolled with Medicare (CMS data updated October 2, 2026).
- 6550 Fannin StHouston, TX 77030 (713) 441‑5577
- 6560 Fannin St, Suite 1280Houston, TX 77030 (713) 441‑5577
- 6565 Fannin St, Suite 520Houston, TX 77030
Group practices
Medicare enrollment lists Nagi M. Demian as a member of these groups (CMS data updated October 2, 2026).
- Houston Methodist Oral and Maxillofacial Surgeons, PLLC3 clinicians in the group
- Tmhpo Oral and Maxillofacial Surgery3 clinicians in the group
Specialties
- Maxillofacial Surgeryprimary
- Oral Surgeryalso
Other maxillofacial surgeons in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Houston Methodist Oral and Maxillofacial Surgeons, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DDS |
|---|---|
| Graduation year | 1999 (27 years since dental school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043249287 |
| 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