Cormac O'Connor, M.D.
NPI 1780686360 · Family Medicine Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cormac O'Connor, M.D. is a Family Medicine Physician provider in Falls Church, VA (NPI 1780686360).
Provider details
- NPI number
- 1780686360
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101262650 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (3)
- 915 N St SeWashington, DC 20374-5162Phone: (202) 340-5136
- 7042 Little River Tpke Ste aAnnandale, VA 22003-5973Phone: (703) 343-7125
- 9300 Dewitt LoopFt Belvoir, VA 22060-5285Phone: (202) 340-5136
Registry dates
- Enumerated
- 2005-08-12
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Cormac O'Connor's NPI number?
- Cormac O'Connor's National Provider Identifier (NPI) is 1780686360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cormac O'Connor's specialty?
- Cormac O'Connor is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cormac O'Connor located?
- Cormac O'Connor's practice location on file with NPPES is 7700 Arlington Blvd # 2nw134b, Falls Church, VA 22042-2929.
- What is Cormac O'Connor's phone number?
- The practice phone number listed in the NPPES registry for Cormac O'Connor is (202) 340-5136.
- Does Cormac O'Connor accept Medicare?
- Cormac O'Connor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cormac O'Connor's NPI active?
- Yes — Cormac O'Connor's NPI (1780686360) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.