2026 NPPES data Cardiovascular Disease Physician NPI 1932580990 MD, MBA, MPH
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ARA ROSTOMIAN, MD, MBA, MPH

Cardiovascular Disease Physician in SYLMAR, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
498
Medicare Part D claims · 158 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ARA ROSTOMIAN, MD, MBA, MPH filed 498 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in SYLMAR, California, prescribing 83% generic.

498
Part D claims, 2023
83%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ARA ROSTOMIAN, MD, MBA, MPH's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

498 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ARA ROSTOMIAN, MD, MBA, MPH practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ARA ROSTOMIAN, MD, MBA, MPH?

Quality data not reported

NPI registry status

Active

Issued 06/16/2015

NPI 1932580990

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

498 84% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in California

How Cardiovascular Disease Physician compares to other specialties among California providers

California providers

Cardiovascular Disease Physician share within California

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cardiovascular Disease Physician ABMS/AOA estimate

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ARA ROSTOMIAN, MD, MBA, MPH appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD, MBA, MPH credentials at 14445 OLIVE VIEW DR, SYLMAR, CA, 91342, with a listed phone of (818) 364-3252. NPI 1932580990 was issued on 06/16/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROSTOMIAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 498 prescription claims written by this provider, covering 158 Medicare beneficiaries and totaling roughly $50K in drug spend, split 17% brand-name and 83% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Provider Details

NPI 1932580990
Specialty Cardiovascular Disease Physician
Credentials MD, MBA, MPH
Gender Male
NPI Issued 06/16/2015

Hospital and facility affiliations

Facilities where ARA ROSTOMIAN, MD, MBA, MPH bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
PANORAMA CITY, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ARA ROSTOMIAN, MD, MBA, MPH. To verify ARA ROSTOMIAN, MD, MBA, MPH's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ARA ROSTOMIAN, MD, MBA, MPH — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 498 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

498
Total Claims
$50K
Total Drug Cost
158
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,440
Total Day Supply
42,962
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$43K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
1.57
Gender Split
40% female / 60% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ARA ROSTOMIAN, MD, MBA, MPH prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Clopidogrel
Clopidogrel Bisulfate
114
Atorvastatin Calcium
55
Rosuvastatin Calcium
45
Jardiance
Empagliflozin
40
Metoprolol Tartrate
33
Carvedilol
26
Bisoprolol Fumarate
23
Pradaxa
Dabigatran Etexilate Mesylate
21
Spironolactone
19
Metoprolol Succinate
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How ARA ROSTOMIAN, MD, MBA, MPH fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

ARA ROSTOMIAN, MD, MBA, MPH's 498 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ROSTOMIAN.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARA ROSTOMIAN, MD, MBA, MPH's specialty?
ARA ROSTOMIAN, MD, MBA, MPH specializes in Cardiovascular Disease Physician and practices in SYLMAR, California. Credentials: MD, MBA, MPH.
How much does ARA ROSTOMIAN, MD, MBA, MPH prescribe under Medicare Part D?
In 2023, ARA ROSTOMIAN, MD, MBA, MPH wrote 498 Medicare Part D claims totaling $50K in drug costs for 158 beneficiaries.
Where is ARA ROSTOMIAN, MD, MBA, MPH located?
ARA ROSTOMIAN, MD, MBA, MPH is located at 14445 OLIVE VIEW DR, SYLMAR, CA, 91342. Phone: (818) 364-3252.
What is ARA ROSTOMIAN, MD, MBA, MPH's NPI number?
ARA ROSTOMIAN, MD, MBA, MPH's National Provider Identifier (NPI) is 1932580990, issued on 06/16/2015.
Does ARA ROSTOMIAN, MD, MBA, MPH prescribe more brand-name or generic drugs?
ARA ROSTOMIAN, MD, MBA, MPH's prescribing is 17% brand-name and 83% generic drugs by claim count, with $43K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does ARA ROSTOMIAN, MD, MBA, MPH prescribe most often?
Based on 2023 Medicare Part D data, ARA ROSTOMIAN, MD, MBA, MPH's most frequently prescribed drugs include Clopidogrel, Atorvastatin Calcium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARA ROSTOMIAN, MD, MBA, MPH accept Medicare?
ARA ROSTOMIAN, MD, MBA, MPH appears in CMS Medicare data with 498 Part D claims and 158 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARA ROSTOMIAN, MD, MBA, MPH's credentials?
ARA ROSTOMIAN, MD, MBA, MPH's NPI is 1932580990 with credentials MD, MBA, MPH. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology