DR. MERI ANTOSSYAN D.O
NPI 1457738460
Family Medicine in Valencia, CA

Active since April 28, 2015PECOS EnrolledAccepts Medicare Assignment
23861 MCBEAN PKWY STE E24, VALENCIA, CA 91355(661) 284-3100 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 6, 2026, Feb 3, 2021, Nov 13, 2020 and 3 more (6 updates tracked since 2017).

About Dr. Meri Antossyan D.o NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MERI ANTOSSYAN D.O (NPI 1457738460) is an individual family medicine provider in Valencia, California, licensed in California (20A13819) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1457738460
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MERI ANTOSSYANCredential: D.O
Location Address23861 MCBEAN PKWY STE E24Valencia, CA 91355-4457
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateApril 28, 2015
Last NPPES UpdateJanuary 6, 20266 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
NPI 1457738460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in CA · 20A13819
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
23861 MCBEAN PKWY STE E24, Valencia, CA 91355

Other Names 1

Other Name (5)Mary Antossyan

Secondary Practice Locations 2

Location 11975 Verdugo Blvd Ste ALA Canada Flintridge, CA 91011-3024 · Phone (747) 212-3441
Location 2544 N Glendale Ave Ste BGlendale, CA 91206-3311 · Phone (747) 212-3441

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Meri Antossyan D.o is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4082902192
PECOS Enrollment IDI20161005001389
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
112 services64 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
91 services35 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
46 services27 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
25 services23 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
24 services23 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91355 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), without side rails, without mattress E0295
DME-Hospital Beds · category DB000N
2 suppliers19 claims19 services$47.72 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
2 suppliers15 claims15 services$31.18 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$7.48 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Cardiovascular Disease)
23861 MCBEAN PKWY STE E24
VALENCIA, CA 91355
Internal Medicine (Cardiovascular Disease)
23861 MCBEAN PKWY STE E24
VALENCIA, CA 91355
Internal Medicine
23861 MCBEAN PKWY STE E24
SANTA CLARITA, CA 91355
Durable Medical Equipment & Medical Supplies
23861 MCBEAN PKWY STE E24
VALENCIA, CA 91355
Internal Medicine (Cardiovascular Disease)
23861 MCBEAN PKWY STE E24
VALENCIA, CA 91355
Internal Medicine (Cardiovascular Disease)
23861 MCBEAN PKWY STE E24
VALENCIA, CA 91355

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Meri Antossyan's NPI number?

The NPI number for Meri Antossyan is 1457738460. It was assigned to this individual provider in the NPPES registry on April 28, 2015. The provider is also known as Mary Antossyan.

Where is Meri Antossyan located?

Meri Antossyan practices at 23861 Mcbean Pkwy Ste E24, Valencia, CA 91355. The listed phone number is (661) 284-3100.

What is Meri Antossyan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Meri Antossyan enrolled in Medicare?

Yes. Meri Antossyan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Meri Antossyan was last updated on January 6, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.