Charles Fencil, MD
NPI 1679199517 · Family Medicine Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Fencil, MD is a Family Medicine Physician provider in Fairfax, VA (NPI 1679199517).
Provider details
- NPI number
- 1679199517
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101273412 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
491 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 261 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $100 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 42 | $143 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 39 | $191 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 18 | $69 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 65 | 27 |
| Rosuvastatin Calcium | 52 | 20 |
| Lisinopril | 50 | 15 |
| Olmesartan Medoxomil | 43 | 14 |
| Amlodipine Besylate | 28 | 15 |
| Tamsulosin Hcl | 27 | — |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-16
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is Charles Fencil's NPI number?
- Charles Fencil's National Provider Identifier (NPI) is 1679199517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Fencil's specialty?
- Charles Fencil is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Fencil located?
- Charles Fencil's practice location on file with NPPES is 3650 Joseph Siewick Dr Ste 400, Fairfax, VA 22033-1715.
- What is Charles Fencil's phone number?
- The practice phone number listed in the NPPES registry for Charles Fencil is (703) 391-2020.
- Does Charles Fencil accept Medicare?
- Charles Fencil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Fencil's NPI active?
- Yes — Charles Fencil's NPI (1679199517) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.