Arthur Loussararian, M.D.
NPI 1720065121 · Interventional Cardiology Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Loussararian, M.D. is a Interventional Cardiology Physician provider in Mission Viejo, CA (NPI 1720065121).
Provider details
- NPI number
- 1720065121
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G75082 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,425 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,463 | $8 |
| Blood Test, Clotting Time85610 | 834 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 653 | $138 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 600 | $12 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 303 | $26 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 565 | 159 |
| Atorvastatin Calcium | 475 | 149 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 286 | 71 |
| Losartan Potassium | 194 | 58 |
| Nifedipinebrand: Nifedipine Er | 194 | 45 |
| Warfarin Sodium | 180 | 79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,212 across 33 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
Registry dates
- Enumerated
- 2005-12-27
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Arthur Loussararian's NPI number?
- Arthur Loussararian's National Provider Identifier (NPI) is 1720065121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Loussararian's specialty?
- Arthur Loussararian is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Loussararian located?
- Arthur Loussararian's practice location on file with NPPES is 26800 Crown Valley Pkwy, Mission Viejo, CA 92691-6384.
- What is Arthur Loussararian's phone number?
- The practice phone number listed in the NPPES registry for Arthur Loussararian is (949) 364-3388.
- Does Arthur Loussararian accept Medicare?
- Arthur Loussararian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Loussararian's NPI active?
- Yes — Arthur Loussararian's NPI (1720065121) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.