2026 NPPES data Cardiovascular Disease Physician NPI 1891882247 M.D.
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MARVIN APPEL, M.D.

Cardiovascular Disease Physician in RANCHO PALOS VERDES, 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
41
Medicare Part D claims · Cardiovascular Disease Physician avg: 3K
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARVIN APPEL, M.D. is a Cardiovascular Disease Physician ([object Object]) practicing in RANCHO PALOS VERDES, California with a Medicare Part D prescribing footprint of 41 claims — 32% brand-name prescribing .

What stands out: MARVIN APPEL, M.D. filed 41 Medicare Part D claims in 2023 across RANCHO PALOS VERDES, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MARVIN APPEL, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

MARVIN APPEL, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/06/2006

NPI 1891882247

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

41 99% 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).

MARVIN APPEL, M.D. is a Cardiovascular Disease Physician provider practicing in RANCHO PALOS VERDES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1891882247. 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.

MARVIN APPEL, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 28051 SANTONA DR, RANCHO PALOS VERDES, CA, 90275, with a listed phone of (310) 344-1335. NPI 1891882247 was issued on 10/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what APPEL 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 41 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $6K in drug spend, split 32% brand-name and 68% 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

28051 SANTONA DR
RANCHO PALOS VERDES, CA 90275

Provider Details

NPI 1891882247
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 10/06/2006

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 MARVIN APPEL, M.D.. To verify MARVIN APPEL, 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 · Above average

MARVIN APPEL, M.D. — brand share 32.0%
Specialty average (est.)

32% brand-name claims vs 68% generic, on 41 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.

41
Total Claims
$6K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
85
Total Day Supply
2,393
Brand vs Generic
32% brand / 68% generic
Brand Drug Cost
$5K
Generic Drug Cost
$869

Patient Demographics

Average Patient Age
79.5 years
Avg HCC Risk Score
0.64

Cardiovascular Disease Physician Overview

How MARVIN APPEL, 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

MARVIN APPEL, M.D.'s 41 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 APPEL.

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

Frequently Asked Questions

What is MARVIN APPEL, M.D.'s specialty?
MARVIN APPEL, M.D. specializes in Cardiovascular Disease Physician and practices in RANCHO PALOS VERDES, California. Credentials: M.D..
How much does MARVIN APPEL, M.D. prescribe under Medicare Part D?
In 2023, MARVIN APPEL, M.D. wrote 41 Medicare Part D claims totaling $6K in drug costs for N/A beneficiaries.
Where is MARVIN APPEL, M.D. located?
MARVIN APPEL, M.D. is located at 28051 SANTONA DR, RANCHO PALOS VERDES, CA, 90275. Phone: (310) 344-1335.
What is MARVIN APPEL, M.D.'s NPI number?
MARVIN APPEL, M.D.'s National Provider Identifier (NPI) is 1891882247, issued on 10/06/2006.
Does MARVIN APPEL, M.D. prescribe more brand-name or generic drugs?
MARVIN APPEL, M.D.'s prescribing is 32% brand-name and 68% generic drugs by claim count, with $5K 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.
Does MARVIN APPEL, M.D. accept Medicare?
MARVIN APPEL, M.D. appears in CMS Medicare data with 41 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARVIN APPEL, M.D.'s credentials?
MARVIN APPEL, M.D.'s NPI is 1891882247 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