Paul O'Brien, MD
NPI 1992865588 · Cardiovascular Disease Physician · Annandale, VA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul O'Brien, MD is a Cardiovascular Disease Physician provider in Annandale, VA (NPI 1992865588).
Provider details
- NPI number
- 1992865588
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101055808 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,593 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,390 | $144 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 481 | $16 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 290 | $228 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician93015 | 63 | $73 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 61 | $222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 599 | 178 |
| Metoprolol Succinate | 402 | 122 |
| Rosuvastatin Calcium | 306 | 93 |
| Amlodipine Besylate | 280 | 81 |
| Ezetimibe | 265 | 84 |
| Apixabanbrand: Eliquis | 209 | 57 |
| Valsartan | 153 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$959 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 4320 Seminary RdAlexandria, VA 22304-1535Phone: (703) 504-3000Fax: (703) 504-3388
- 3300 Gallows RdFalls Church, VA 22042-3300Phone: (703) 504-3000Fax: (703) 504-3388
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2022-02-07
- Certified
- 2022-02-07
Frequently asked questions
- What is Paul O'Brien's NPI number?
- Paul O'Brien's National Provider Identifier (NPI) is 1992865588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul O'Brien's specialty?
- Paul O'Brien is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Paul O'Brien located?
- Paul O'Brien's practice location on file with NPPES is 6715 Little River Tpke Ste 300, Annandale, VA 22003-3546.
- What is Paul O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Paul O'Brien is (703) 751-6668.
- Does Paul O'Brien accept Medicare?
- Paul O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul O'Brien's NPI active?
- Yes — Paul O'Brien's NPI (1992865588) is active in the NPPES registry as of the last update on 2022-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.