Mark Vasiliadis, M.D.
NPI 1639241771 · Family Medicine Physician · Reston, VA
Mark Vasiliadis, M.D. is a Family Medicine Physician provider in Reston, VA (NPI 1639241771).
Provider details
- NPI number
- 1639241771
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101050406 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 57 | 15 |
| Atorvastatin Calcium | 29 | — |
| Ezetimibe | 27 | — |
| Levothyroxine Sodium | 20 | — |
| Amlodipine Besylate | 18 | — |
| Metoprolol Succinate | 16 | — |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2022-08-25
- Certified
- 2022-08-25
Frequently asked questions
- What is Mark Vasiliadis's NPI number?
- Mark Vasiliadis's National Provider Identifier (NPI) is 1639241771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Vasiliadis's specialty?
- Mark Vasiliadis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Vasiliadis located?
- Mark Vasiliadis's practice location on file with NPPES is 12040 S Lakes Dr, Reston, VA 20191-1246.
- What is Mark Vasiliadis's phone number?
- The practice phone number listed in the NPPES registry for Mark Vasiliadis is (703) 230-0347.
- Is Mark Vasiliadis's NPI active?
- Yes — Mark Vasiliadis's NPI (1639241771) is active in the NPPES registry as of the last update on 2022-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.