Ara Thomassian, M.D.
NPI 1609118777 · Internal Medicine Physician · Valley Village, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ara Thomassian, M.D. is a Internal Medicine Physician provider in Valley Village, CA (NPI 1609118777).
Provider details
- NPI number
- 1609118777
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A132991 (CA)
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
13 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
5,536 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 | 769 | $139 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 656 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 631 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 628 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 572 | $13 |
| Hemoglobin A1c Level83036 | 399 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 123 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 787 | 188 |
| Amlodipine Besylate | 474 | 107 |
| Levothyroxine Sodium | 273 | 59 |
| Rosuvastatin Calcium | 245 | 57 |
| Omeprazole | 240 | 66 |
| Losartan Potassium | 234 | 60 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 across 10 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
- 2013-03-26
- Last updated
- 2016-09-28
Frequently asked questions
- What is Ara Thomassian's NPI number?
- Ara Thomassian's National Provider Identifier (NPI) is 1609118777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ara Thomassian's specialty?
- Ara Thomassian is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ara Thomassian located?
- Ara Thomassian's practice location on file with NPPES is 12660 Riverside Dr, Valley Village, CA 91607-3429.
- What is Ara Thomassian's phone number?
- The practice phone number listed in the NPPES registry for Ara Thomassian is (818) 487-0040.
- Does Ara Thomassian accept Medicare?
- Ara Thomassian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ara Thomassian's NPI active?
- Yes — Ara Thomassian's NPI (1609118777) is active in the NPPES registry as of the last update on 2016-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.