2026 NPPES data Vascular Surgery Physician NPI 1174528889 MD
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JEFFRY CARDNEAU, MD

Vascular Surgery Physician in SAN RAFAEL, 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
322
Medicare Part D claims · 110 beneficiaries · Vascular Surgery Physician avg: 205
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JEFFRY CARDNEAU, MD filed 322 Medicare Part D claims in 2023 as a Vascular Surgery Physician in SAN RAFAEL, California, prescribing 94% generic.

322
Part D claims, 2023
94%
generic prescribing

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.

JEFFRY CARDNEAU, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

322 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

JEFFRY CARDNEAU, MD 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).

What does the federal data show about JEFFRY CARDNEAU, MD?

Quality data not reported

NPI registry status

Active

Issued 06/17/2005

NPI 1174528889

Primary specialty

Vascular Surgery Physician

Niche

4,215 US NPIs in this specialty

Medicare Part D claims

322 57% vs specialty avg

2023 prescription claims

Specialty avg: 205

Specialty distribution in California

How Vascular Surgery Physician compares to other specialties among California providers

California providers

Vascular Surgery Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Vascular Surgery Physician (ABMS / AOA reference)

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

Est. board-certified rate (Vascular Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Vascular Surgery 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).

JEFFRY CARDNEAU, MD appears in the CMS NPPES registry as a Vascular Surgery Physician provider holding MD credentials at 99 MONTECILLO RD, SAN RAFAEL, CA, 94903, with a listed phone of (415) 444-3131. NPI 1174528889 was issued on 06/17/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARDNEAU 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 322 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $20K in drug spend, split 6% brand-name and 94% 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.

Vascular Surgery Physician is a narrow specialty nationwide, with 4,215 enrolled providers across 53 states and an average of 205 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

99 MONTECILLO RD
SAN RAFAEL, CA 94903

Provider Details

NPI 1174528889
Specialty Vascular Surgery Physician
Credentials MD
Gender Male
NPI Issued 06/17/2005

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 JEFFRY CARDNEAU, MD. To verify JEFFRY CARDNEAU, MD'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 · Generic-heavy

JEFFRY CARDNEAU, MD — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 322 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.

322
Total Claims
$20K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
855
Total Day Supply
24,125
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$14K
Generic Drug Cost
$6K
Antibiotic Claims
41

Patient Demographics

Average Patient Age
80.2 years
Avg HCC Risk Score
1.73
Gender Split
35% female / 65% male

Top Prescribed Drugs (Medicare Part D)

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

What JEFFRY CARDNEAU, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
100
Clopidogrel
Clopidogrel Bisulfate
87
Amoxicillin
34
Cilostazol
18
Rosuvastatin Calcium
11

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

Vascular Surgery Physician Overview

How JEFFRY CARDNEAU, MD fits within the Vascular Surgery Physician landscape nationally.

4,215
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
205
Avg Claims per Provider

JEFFRY CARDNEAU, MD's 322 claims are above the specialty average of 205.

Nearby Vascular Surgery Physician Providers in California

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

Compare Vascular Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JEFFRY CARDNEAU, MD's specialty?
JEFFRY CARDNEAU, MD specializes in Vascular Surgery Physician and practices in SAN RAFAEL, California. Credentials: MD.
How much does JEFFRY CARDNEAU, MD prescribe under Medicare Part D?
In 2023, JEFFRY CARDNEAU, MD wrote 322 Medicare Part D claims totaling $20K in drug costs for 110 beneficiaries.
Where is JEFFRY CARDNEAU, MD located?
JEFFRY CARDNEAU, MD is located at 99 MONTECILLO RD, SAN RAFAEL, CA, 94903. Phone: (415) 444-3131.
What is JEFFRY CARDNEAU, MD's NPI number?
JEFFRY CARDNEAU, MD's National Provider Identifier (NPI) is 1174528889, issued on 06/17/2005.
Does JEFFRY CARDNEAU, MD prescribe more brand-name or generic drugs?
JEFFRY CARDNEAU, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $14K in brand drug costs.
How many Vascular Surgery Physician providers are there in the US?
There are 4,215 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 205 Medicare Part D claims per year.
What drugs does JEFFRY CARDNEAU, MD prescribe most often?
Based on 2023 Medicare Part D data, JEFFRY CARDNEAU, MD's most frequently prescribed drugs include Atorvastatin Calcium, Clopidogrel, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFRY CARDNEAU, MD accept Medicare?
JEFFRY CARDNEAU, MD appears in CMS Medicare data with 322 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFRY CARDNEAU, MD's credentials?
JEFFRY CARDNEAU, MD's NPI is 1174528889 with credentials MD. 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