Owen Sisbarro, MD
NPI 1609551993 · Family Medicine Physician · Fairfax, VA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Owen Sisbarro, MD is a Family Medicine Physician provider in Fairfax, VA (NPI 1609551993).
Provider details
- NPI number
- 1609551993
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0116038074 (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
3 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 23 | 19 |
| Losartan Potassium | 15 | — |
| Lisinopril | 14 | — |
| Metoprolol Succinate | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-06-15
- Last updated
- 2023-06-15
- Certified
- 2023-06-15
Frequently asked questions
- What is Owen Sisbarro's NPI number?
- Owen Sisbarro's National Provider Identifier (NPI) is 1609551993, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Owen Sisbarro's specialty?
- Owen Sisbarro is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Owen Sisbarro located?
- Owen Sisbarro's practice location on file with NPPES is 3650 Joseph Siewick Dr Ste 400, Fairfax, VA 22033-1715.
- What is Owen Sisbarro's phone number?
- The practice phone number listed in the NPPES registry for Owen Sisbarro is (703) 391-2020.
- Does Owen Sisbarro accept Medicare?
- Owen Sisbarro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Owen Sisbarro's NPI active?
- Yes — Owen Sisbarro's NPI (1609551993) is active in the NPPES registry as of the last update on 2023-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.