Meri Antossyan, D.O
NPI 1457738460 · Family Medicine Physician · Valencia, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Meri Antossyan, D.O is a Family Medicine Physician provider in Valencia, CA (NPI 1457738460).
Provider details
- NPI number
- 1457738460
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A13819 (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
11 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
363 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $98 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 91 | $122 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 46 | $138 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $178 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 24 | $119 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 42 |
| Metformin Hcl | 34 |
| Amlodipine Besylate | 31 |
| Levothyroxine Sodium | 27 |
| Sertraline Hcl | 23 |
| Rosuvastatin Calcium | 21 |
| Gabapentin | 20 |
| Carvedilol | 19 |
| Simvastatin | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$126 across 5 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)
- 544 N Glendale Ave Ste BGlendale, CA 91206-3311Phone: (747) 212-3441
- 1975 Verdugo Blvd Ste aLa Canada Flintridge, CA 91011-3024Phone: (747) 212-3441
Registry dates
- Enumerated
- 2015-04-28
- Last updated
- 2026-01-06
- Certified
- 2026-01-06
Frequently asked questions
- What is Meri Antossyan's NPI number?
- Meri Antossyan's National Provider Identifier (NPI) is 1457738460, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Meri Antossyan's specialty?
- Meri Antossyan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Meri Antossyan located?
- Meri Antossyan's practice location on file with NPPES is 23861 Mcbean Pkwy Ste E24, Valencia, CA 91355-4457.
- What is Meri Antossyan's phone number?
- The practice phone number listed in the NPPES registry for Meri Antossyan is (661) 284-3100.
- Does Meri Antossyan accept Medicare?
- Meri Antossyan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Meri Antossyan's NPI active?
- Yes — Meri Antossyan's NPI (1457738460) is active in the NPPES registry as of the last update on 2026-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.