2026 NPPES data Interventional Cardiology Physician NPI 1285843979 M.D.
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SOMSUPHA KANJANAUTHAI, M.D.

Interventional Cardiology Physician in LOS ANGELES, 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
171
Medicare Part D claims · 38 beneficiaries · Interventional Cardiology Physician avg: 3K
Industry payments
$129.95
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SOMSUPHA KANJANAUTHAI, M.D. is a Interventional Cardiology Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 171 claims across 38 beneficiaries . Industry payments of $129.95 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SOMSUPHA KANJANAUTHAI, M.D. filed 171 Medicare Part D claims in 2023 across LOS ANGELES, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SOMSUPHA KANJANAUTHAI, M.D. 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).

SOMSUPHA KANJANAUTHAI, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/21/2007

NPI 1285843979

Primary specialty

Interventional Cardiology Physician

Niche

3,382 US NPIs in this specialty

Medicare Part D claims

171 94% vs specialty avg

2023 prescription claims

Specialty avg: 2,984

Specialty distribution in California

How Interventional Cardiology Physician compares to other specialties among California providers

California providers

Interventional Cardiology Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Interventional Cardiology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Interventional Cardiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Interventional Cardiology 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).

SOMSUPHA KANJANAUTHAI, M.D. is a Interventional Cardiology Physician provider practicing in LOS ANGELES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1285843979. 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.

SOMSUPHA KANJANAUTHAI, M.D. appears in the CMS NPPES registry as a Interventional Cardiology Physician provider holding M.D. credentials at 1300 N VERMONT AVE, LOS ANGELES, CA, 90027, with a listed phone of (323) 913-4200. NPI 1285843979 was issued on 05/21/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KANJANAUTHAI 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 171 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $8K 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.

Interventional Cardiology Physician is a narrow specialty nationwide, with 3,382 enrolled providers across 53 states and an average of 2,984 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

1300 N VERMONT AVE
LOS ANGELES, CA 90027

Provider Details

NPI 1285843979
Specialty Interventional Cardiology Physician
Credentials M.D.
Gender Female
NPI Issued 05/21/2007

Hospital and facility affiliations

Facilities where SOMSUPHA KANJANAUTHAI, 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.

PACIFICA FOUNDATION LLC
LOS ANGELES, 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 SOMSUPHA KANJANAUTHAI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$130

Largest payer

ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)

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 SOMSUPHA KANJANAUTHAI, M.D.. To verify SOMSUPHA KANJANAUTHAI, 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.

171
Total Claims
$8K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
350
Total Day Supply
10,352
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
2.22
Gender Split
42% female / 58% 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
Atorvastatin Calcium
30
Carvedilol
24
Amlodipine Besylate
18
Clopidogrel
Clopidogrel Bisulfate
18
Lisinopril
14
Metoprolol Succinate
13

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

Interventional Cardiology Physician Overview

How SOMSUPHA KANJANAUTHAI, M.D. fits within the Interventional Cardiology Physician landscape nationally.

3,382
Interventional Cardiology Physician Providers in US
53
States with Interventional Cardiology Physician
2,984
Avg Claims per Provider

SOMSUPHA KANJANAUTHAI, M.D.'s 171 claims are below the specialty average of 2,984.

Nearby Interventional Cardiology Physician Providers in California

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

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

Frequently Asked Questions

What is SOMSUPHA KANJANAUTHAI, M.D.'s specialty?
SOMSUPHA KANJANAUTHAI, M.D. specializes in Interventional Cardiology Physician and practices in LOS ANGELES, California. Credentials: M.D..
How much does SOMSUPHA KANJANAUTHAI, M.D. prescribe under Medicare Part D?
In 2023, SOMSUPHA KANJANAUTHAI, M.D. wrote 171 Medicare Part D claims totaling $8K in drug costs for 38 beneficiaries.
Where is SOMSUPHA KANJANAUTHAI, M.D. located?
SOMSUPHA KANJANAUTHAI, M.D. is located at 1300 N VERMONT AVE, LOS ANGELES, CA, 90027. Phone: (323) 913-4200.
What is SOMSUPHA KANJANAUTHAI, M.D.'s NPI number?
SOMSUPHA KANJANAUTHAI, M.D.'s National Provider Identifier (NPI) is 1285843979, issued on 05/21/2007.
How many Interventional Cardiology Physician providers are there in the US?
There are 3,382 Interventional Cardiology Physician providers across 53 states in the US. The average Interventional Cardiology Physician provider writes 2,984 Medicare Part D claims per year.
What drugs does SOMSUPHA KANJANAUTHAI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SOMSUPHA KANJANAUTHAI, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Carvedilol, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SOMSUPHA KANJANAUTHAI, M.D. accept Medicare?
SOMSUPHA KANJANAUTHAI, M.D. appears in CMS Medicare data with 171 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SOMSUPHA KANJANAUTHAI, M.D.'s credentials?
SOMSUPHA KANJANAUTHAI, M.D.'s NPI is 1285843979 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.
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