2026 NPPES data Nephrology Physician NPI 1356350946 M.D.
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ZIAD ASHKAR, M.D.

Nephrology Physician in LAFAYETTE, Louisiana. 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
945
Medicare Part D claims · 172 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$17.6K
28 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ZIAD ASHKAR, M.D. is a Nephrology Physician ([object Object]) practicing in LAFAYETTE, Louisiana with a Medicare Part D prescribing footprint of 945 claims across 172 beneficiaries — 10% brand-name prescribing . Industry payments of $17.6K across 28 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ZIAD ASHKAR, M.D. filed 945 Medicare Part D claims in 2023 across LAFAYETTE, Louisiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ZIAD ASHKAR, 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).

ZIAD ASHKAR, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/05/2006

NPI 1356350946

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

945 35% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Louisiana

How Nephrology Physician compares to other specialties among Louisiana providers

Louisiana providers

Nephrology Physician share within Louisiana

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Louisiana

Specialty board-certification context

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

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

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

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

ZIAD ASHKAR, M.D. is a Nephrology Physician provider practicing in LAFAYETTE, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1356350946. 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.

ZIAD ASHKAR, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 1460 S. COLLEGE, LAFAYETTE, LA, 70503, with a listed phone of (337) 703-6431. NPI 1356350946 was issued on 08/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ASHKAR 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 945 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $100K in drug spend, split 10% brand-name and 90% 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

1460 S. COLLEGE
LAFAYETTE, LA 70503

Provider Details

NPI 1356350946
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 08/05/2006

Hospital and facility affiliations

Facilities where ZIAD ASHKAR, 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.

LAFAYETTE GENERAL MEDICAL CENTER INC
LAFAYETTE, LA

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 ZIAD ASHKAR, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$17.6K

Largest payer

Lilly USA, LLC

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.

Brand vs generic prescribing mix · Typical

ZIAD ASHKAR, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 945 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.

945
Total Claims
$100K
Total Drug Cost
172
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,480
Total Day Supply
42,269
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$62K
Generic Drug Cost
$38K
Antibiotic Claims
51

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
3.23
Gender Split
50% female / 50% male
Age Distribution
<65: 31, 65-74: 82, 75-84: 42, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Calcitriol
113
Torsemide
92
Potassium Chloride
71
Amlodipine Besylate
48
Carvedilol
45
Lisinopril
45
Clonidine Hcl
41
Nifedipine Er
Nifedipine
40
Farxiga
Dapagliflozin Propanediol
34
Doxazosin Mesylate
32

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

Nephrology Physician Overview

How ZIAD ASHKAR, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

ZIAD ASHKAR, M.D.'s 945 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Louisiana

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ZIAD ASHKAR, M.D.'s specialty?
ZIAD ASHKAR, M.D. specializes in Nephrology Physician and practices in LAFAYETTE, Louisiana. Credentials: M.D..
How much does ZIAD ASHKAR, M.D. prescribe under Medicare Part D?
In 2023, ZIAD ASHKAR, M.D. wrote 945 Medicare Part D claims totaling $100K in drug costs for 172 beneficiaries.
Where is ZIAD ASHKAR, M.D. located?
ZIAD ASHKAR, M.D. is located at 1460 S. COLLEGE, LAFAYETTE, LA, 70503. Phone: (337) 703-6431.
What is ZIAD ASHKAR, M.D.'s NPI number?
ZIAD ASHKAR, M.D.'s National Provider Identifier (NPI) is 1356350946, issued on 08/05/2006.
Does ZIAD ASHKAR, M.D. prescribe more brand-name or generic drugs?
ZIAD ASHKAR, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $62K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does ZIAD ASHKAR, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ZIAD ASHKAR, M.D.'s most frequently prescribed drugs include Calcitriol, Torsemide, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZIAD ASHKAR, M.D. accept Medicare?
ZIAD ASHKAR, M.D. appears in CMS Medicare data with 945 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZIAD ASHKAR, M.D.'s credentials?
ZIAD ASHKAR, M.D.'s NPI is 1356350946 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