Arthur Ohannessian, MD
NPI 1477713139 · Family Medicine Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Ohannessian, MD is a Family Medicine Physician provider in Santa Monica, CA (NPI 1477713139).
Provider details
- NPI number
- 1477713139
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A111094 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
55 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 36 | $138 |
| Admn Sarscov2 Vacc 1 Dose90480 | 19 | $47 |
Typical Medicare-allowed amounts for these services range $47–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 29 |
| Empagliflozinbrand: Jardiance | 20 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 17 |
| Tamsulosin Hcl | 14 |
| Gabapentin | 13 |
| Meclizine Hcl | 13 |
| Simvastatin | 12 |
| Metoprolol Succinate | 11 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2025-01-27
- Certified
- 2025-01-27
Frequently asked questions
- What is Arthur Ohannessian's NPI number?
- Arthur Ohannessian's National Provider Identifier (NPI) is 1477713139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Ohannessian's specialty?
- Arthur Ohannessian is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Ohannessian located?
- Arthur Ohannessian's practice location on file with NPPES is 1920 Colorado Ave, Santa Monica, CA 90404-3414.
- What is Arthur Ohannessian's phone number?
- The practice phone number listed in the NPPES registry for Arthur Ohannessian is (310) 319-4700.
- Does Arthur Ohannessian accept Medicare?
- Arthur Ohannessian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Ohannessian's NPI active?
- Yes — Arthur Ohannessian's NPI (1477713139) is active in the NPPES registry as of the last update on 2025-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.