2026 NPPES data Cardiovascular Disease Physician NPI 1285664029 M.D.
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HOSSEIN ALIMADADIAN, M.D.

Cardiovascular Disease Physician in ORANGE, 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
3K
Medicare Part D claims · 383 beneficiaries · Cardiovascular Disease Physician avg: 3K
MIPS score
97.065/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$876.08
57 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: HOSSEIN ALIMADADIAN, M.D. is a Cardiovascular Disease Physician ([object Object]) practicing in ORANGE, California with a Medicare Part D prescribing footprint of 3K claims across 383 beneficiaries . Their CMS MIPS Final Score of 97.065/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $876.08 across 57 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: HOSSEIN ALIMADADIAN, M.D. reported a CMS MIPS final score of 97.065 out of 100, above the 83.1 national average, and filed 2,726 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

HOSSEIN ALIMADADIAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

HOSSEIN ALIMADADIAN, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 07/04/2006

NPI 1285664029

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

2,726 10% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

MIPS final score

97.065/100 13.965000000000003% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

HOSSEIN ALIMADADIAN, M.D.'s 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average

High performer (top quartile)
MIPS Final Score
97.065/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cardiovascular Disease Physician) — 97.065/100 vs national avg 83.1

0%100%National avg83%97.1%
MIPS final score (Cardiovascular Disease Physician) — 97.065/100 vs national avg 83.1

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).

HOSSEIN ALIMADADIAN, M.D. is a Cardiovascular Disease Physician provider practicing in ORANGE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1285664029. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

HOSSEIN ALIMADADIAN, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 1140 W LA VETA AVE STE 640, ORANGE, CA, 92868, with a listed phone of (714) 564-3300. NPI 1285664029 was issued on 07/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALIMADADIAN 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 2,726 prescription claims written by this provider, covering 383 Medicare beneficiaries and totaling roughly $775K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.065/100 for the 2023 performance year (Quality 90.9695), compared with the national average of 83.1.

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

1140 W LA VETA AVE STE 640
ORANGE, CA 92868

Provider Details

NPI 1285664029
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 07/04/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.065
Final Score
Avg: 83.1
90.9695
Quality
92
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where HOSSEIN ALIMADADIAN, M.D. 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.

ORANGE COUNTY HEART INSTITUTE AND RESEARCH CENTER A MEDICAL GROUP
ORANGE, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for HOSSEIN ALIMADADIAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$876

Largest payer

Kiniksa Pharmaceuticals International, plc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 HOSSEIN ALIMADADIAN, M.D.. To verify HOSSEIN ALIMADADIAN, M.D.'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.

Medicare Part D Prescribing Data

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

2,726
Total Claims
$775K
Total Drug Cost
383
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,083
Total Day Supply
211,656
Generic Drug Cost
$75K

Patient Demographics

Average Patient Age
77.8 years
Avg HCC Risk Score
1.40
Gender Split
45% female / 55% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Rosuvastatin Calcium
215
Metoprolol Tartrate
181
Carvedilol
146
Amlodipine Besylate
144
Atorvastatin Calcium
137
Entresto
Sacubitril/Valsartan
121
Losartan Potassium
116
Xarelto
Rivaroxaban
115
Ezetimibe
88
Eliquis
Apixaban
77

* 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 HOSSEIN ALIMADADIAN, M.D. 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

HOSSEIN ALIMADADIAN, M.D.'s 2,726 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 ALIMADADIAN.

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

Frequently Asked Questions

What is HOSSEIN ALIMADADIAN, M.D.'s specialty?
HOSSEIN ALIMADADIAN, M.D. specializes in Cardiovascular Disease Physician and practices in ORANGE, California. Credentials: M.D..
How much does HOSSEIN ALIMADADIAN, M.D. prescribe under Medicare Part D?
In 2023, HOSSEIN ALIMADADIAN, M.D. wrote 2,726 Medicare Part D claims totaling $775K in drug costs for 383 beneficiaries.
What is HOSSEIN ALIMADADIAN, M.D.'s Medicare quality score?
HOSSEIN ALIMADADIAN, M.D. has a CMS MIPS Final Score of 97.065/100 (Quality: 90.9695). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HOSSEIN ALIMADADIAN, M.D. located?
HOSSEIN ALIMADADIAN, M.D. is located at 1140 W LA VETA AVE STE 640, ORANGE, CA, 92868. Phone: (714) 564-3300.
What is HOSSEIN ALIMADADIAN, M.D.'s NPI number?
HOSSEIN ALIMADADIAN, M.D.'s National Provider Identifier (NPI) is 1285664029, issued on 07/04/2006.
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 HOSSEIN ALIMADADIAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, HOSSEIN ALIMADADIAN, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Metoprolol Tartrate, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HOSSEIN ALIMADADIAN, M.D. accept Medicare?
HOSSEIN ALIMADADIAN, M.D. appears in CMS Medicare data with 2,726 Part D claims and 383 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HOSSEIN ALIMADADIAN, M.D.'s credentials?
HOSSEIN ALIMADADIAN, M.D.'s NPI is 1285664029 with credentials M.D.. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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