2026 NPPES data Interventional Cardiology Physician NPI 1952395493 M.D.
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GUY MAYEDA, 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
3K
Medicare Part D claims · 331 beneficiaries · Interventional Cardiology Physician avg: 3K
Industry payments
$2.2K
28 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GUY MAYEDA, M.D. is a Interventional Cardiology Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 3K claims across 331 beneficiaries . Industry payments of $2.2K across 28 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GUY MAYEDA, M.D. filed 2,712 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)

GUY MAYEDA, 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).

GUY MAYEDA, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 09/09/2005

NPI 1952395493

Primary specialty

Interventional Cardiology Physician

Niche

3,382 US NPIs in this specialty

Medicare Part D claims

2,712 9% 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).

GUY MAYEDA, 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: 1952395493. 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.

GUY MAYEDA, M.D. appears in the CMS NPPES registry as a Interventional Cardiology Physician provider holding M.D. credentials at 1245 WILSHIRE BLVD, LOS ANGELES, CA, 90017, with a listed phone of (213) 977-7422. NPI 1952395493 was issued on 09/09/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAYEDA 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 2,712 prescription claims written by this provider, covering 331 Medicare beneficiaries and totaling roughly $378K 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

1245 WILSHIRE BLVD
LOS ANGELES, CA 90017

Provider Details

NPI 1952395493
Specialty Interventional Cardiology Physician
Credentials M.D.
Gender Male
NPI Issued 09/09/2005

Hospital and facility affiliations

Facilities where GUY MAYEDA, 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.

PIH HEALTH PHYSICIANS
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 GUY MAYEDA, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.2K

Largest payer

Inari 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 GUY MAYEDA, M.D.. To verify GUY MAYEDA, 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.

2,712
Total Claims
$378K
Total Drug Cost
331
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,479
Total Day Supply
192,319
Generic Drug Cost
$79K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
78.7 years
Avg HCC Risk Score
2.41
Gender Split
50% female / 50% male
Age Distribution
<65: 13, 65-74: 100, 75-84: 129, 85+: 89

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
194
Clopidogrel
Clopidogrel Bisulfate
180
Metoprolol Succinate
154
Amlodipine Besylate
149
Rosuvastatin Calcium
133
Losartan Potassium
128
Carvedilol
122
Furosemide
98
Hydralazine Hcl
88
Eliquis
Apixaban
86

* 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 GUY MAYEDA, 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

GUY MAYEDA, M.D.'s 2,712 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 MAYEDA.

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

Frequently Asked Questions

What is GUY MAYEDA, M.D.'s specialty?
GUY MAYEDA, M.D. specializes in Interventional Cardiology Physician and practices in LOS ANGELES, California. Credentials: M.D..
How much does GUY MAYEDA, M.D. prescribe under Medicare Part D?
In 2023, GUY MAYEDA, M.D. wrote 2,712 Medicare Part D claims totaling $378K in drug costs for 331 beneficiaries.
Where is GUY MAYEDA, M.D. located?
GUY MAYEDA, M.D. is located at 1245 WILSHIRE BLVD, LOS ANGELES, CA, 90017. Phone: (213) 977-7422.
What is GUY MAYEDA, M.D.'s NPI number?
GUY MAYEDA, M.D.'s National Provider Identifier (NPI) is 1952395493, issued on 09/09/2005.
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 GUY MAYEDA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GUY MAYEDA, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Clopidogrel, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GUY MAYEDA, M.D. accept Medicare?
GUY MAYEDA, M.D. appears in CMS Medicare data with 2,712 Part D claims and 331 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GUY MAYEDA, M.D.'s credentials?
GUY MAYEDA, M.D.'s NPI is 1952395493 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