2026 NPPES data Nuclear Cardiology Physician NPI 1609806041 M D
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SIVA ARUNASALAM, M D

Nuclear Cardiology Physician in VICTORVILLE, 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
16K
Medicare Part D claims · 848 beneficiaries · Nuclear Cardiology Physician avg: 4K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.8925/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$3.5K
82 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SIVA ARUNASALAM, M D reported a CMS MIPS final score of 85.8925/100 — above the 83.1 national average — and filed 15,982 Medicare Part D claims in 2023.

85.8925/100
MIPS score · +3 vs avg
16K
Part D claims, 2023
78%
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.

SIVA ARUNASALAM, M D's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

86 49th percentile higher than 49% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

SIVA ARUNASALAM, 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).

What does the federal data show about SIVA ARUNASALAM, M D?

High performer (top quartile)

NPI registry status

Active

Issued 07/03/2006

NPI 1609806041

Primary specialty

Nuclear Cardiology Physician

Rare

374 US NPIs in this specialty

Medicare Part D claims

15,982 298% vs specialty avg

2023 prescription claims

Specialty avg: 4,019

MIPS final score

85.8925/100 2.792500000000004% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Nuclear Cardiology Physician compares to other specialties among California providers

California providers

Nuclear Cardiology Physician share within California

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

Medicare quality performance — MIPS

SIVA ARUNASALAM, M D's 2023 MIPS final score plotted against the Nuclear Cardiology Physician national average

High performer (top quartile)
MIPS Final Score
85.8925/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nuclear Cardiology Physician) — 85.8925/100 vs national avg 83.1

0%100%National avg83%85.9%
MIPS final score (Nuclear Cardiology Physician) — 85.8925/100 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).

SIVA ARUNASALAM, M D is a Nuclear Cardiology Physician provider practicing in VICTORVILLE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M D. NPI: 1609806041. 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.

SIVA ARUNASALAM, M D appears in the CMS NPPES registry as a Nuclear Cardiology Physician provider holding M D credentials at 12780 HESPERIA RD, VICTORVILLE, CA, 92395, with a listed phone of (760) 946-5177. NPI 1609806041 was issued on 07/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARUNASALAM 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 15,982 prescription claims written by this provider, covering 848 Medicare beneficiaries and totaling roughly $5.5 million in drug spend, split 22% brand-name and 78% generic by claim count, with an opioid prescribing rate of 3.1%. 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 85.8925/100 for the 2023 performance year (Quality 80.2178, Cost 51.055), compared with the national average of 83.1.

Nuclear Cardiology Physician is a narrow specialty nationwide, with 374 enrolled providers across 37 states and an average of 4,019 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

12780 HESPERIA RD
VICTORVILLE, CA 92395

Provider Details

NPI 1609806041
Specialty Nuclear Cardiology Physician
Credentials M D
Gender Male
NPI Issued 07/03/2006

CMS Quality Score (MIPS)

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

85.8925
Final Score
Avg: 83.1
80.2178
Quality
51.055
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where SIVA ARUNASALAM, 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.

SACH PHYSICIAN BILLING TRUST
UPLAND, 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 SIVA ARUNASALAM, M D. Source: openpaymentsdata.cms.gov.

Total received

$3.5K

Largest payer

ShockWave Medical, Inc

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 SIVA ARUNASALAM, M D. To verify SIVA ARUNASALAM, 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.

Brand vs generic prescribing mix · Typical

SIVA ARUNASALAM, M D — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 15,982 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.

15,982
Total Claims
$5.5M
Total Drug Cost
848
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
28,944
Total Day Supply
843,371
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$5.1M
Generic Drug Cost
$414K
Opioid Claims
497 (3.1% rate)
Antibiotic Claims
527

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
2.09
Gender Split
54% female / 46% male
Age Distribution
<65: 106, 65-74: 326, 75-84: 289, 85+: 127

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
553
Furosemide
523
Potassium Chloride
515
Entresto
Sacubitril/Valsartan
458
Metoprolol Succinate
442
Atorvastatin Calcium
399
Clopidogrel
Clopidogrel Bisulfate
386
Alprazolam
362
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
320
Xarelto
Rivaroxaban
312

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

Nuclear Cardiology Physician Overview

How SIVA ARUNASALAM, M D fits within the Nuclear Cardiology Physician landscape nationally.

374
Nuclear Cardiology Physician Providers in US
37
States with Nuclear Cardiology Physician
4,019
Avg Claims per Provider

SIVA ARUNASALAM, M D's 15,982 claims are above the specialty average of 4,019.

Nearby Nuclear Cardiology Physician Providers in California

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

Compare Nuclear Cardiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SIVA ARUNASALAM, M D's specialty?
SIVA ARUNASALAM, M D specializes in Nuclear Cardiology Physician and practices in VICTORVILLE, California. Credentials: M D.
How much does SIVA ARUNASALAM, M D prescribe under Medicare Part D?
In 2023, SIVA ARUNASALAM, M D wrote 15,982 Medicare Part D claims totaling $5.5M in drug costs for 848 beneficiaries.
What is SIVA ARUNASALAM, M D's Medicare quality score?
SIVA ARUNASALAM, M D has a CMS MIPS Final Score of 85.8925/100 (Quality: 80.2178, Cost: 51.055). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SIVA ARUNASALAM, M D located?
SIVA ARUNASALAM, M D is located at 12780 HESPERIA RD, VICTORVILLE, CA, 92395. Phone: (760) 946-5177.
What is SIVA ARUNASALAM, M D's NPI number?
SIVA ARUNASALAM, M D's National Provider Identifier (NPI) is 1609806041, issued on 07/03/2006.
Does SIVA ARUNASALAM, M D prescribe more brand-name or generic drugs?
SIVA ARUNASALAM, M D's prescribing is 22% brand-name and 78% generic drugs by claim count, with $5.1M in brand drug costs.
Does SIVA ARUNASALAM, M D prescribe opioids?
Yes, SIVA ARUNASALAM, M D had 497 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Nuclear Cardiology Physician providers are there in the US?
There are 374 Nuclear Cardiology Physician providers across 37 states in the US. The average Nuclear Cardiology Physician provider writes 4,019 Medicare Part D claims per year.
What drugs does SIVA ARUNASALAM, M D prescribe most often?
Based on 2023 Medicare Part D data, SIVA ARUNASALAM, M D's most frequently prescribed drugs include Levothyroxine Sodium, Furosemide, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SIVA ARUNASALAM, M D accept Medicare?
SIVA ARUNASALAM, M D appears in CMS Medicare data with 15,982 Part D claims and 848 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SIVA ARUNASALAM, M D's credentials?
SIVA ARUNASALAM, M D's NPI is 1609806041 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