2026 NPPES data Nephrology Physician NPI 1275569485 M.D.
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JUAN ZEIK, 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
1K
Medicare Part D claims · 178 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$97.92
5 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JUAN ZEIK, M.D. filed 1,403 Medicare Part D claims in 2023 as a Nephrology Physician in LAFAYETTE, Louisiana, prescribing 87% generic.

1K
Part D claims, 2023
87%
generic prescribing
$97.92
industry payments (Sunshine Act)

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.

JUAN ZEIK, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,403 Top 20% higher than 80% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 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)

JUAN ZEIK, 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).

What does the federal data show about JUAN ZEIK, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/23/2006

NPI 1275569485

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,403 4% 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).

JUAN ZEIK, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 300 W SAINT MARY BLVD, LAFAYETTE, LA, 70506, with a listed phone of (337) 233-6593. NPI 1275569485 was issued on 06/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZEIK 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 1,403 prescription claims written by this provider, covering 178 Medicare beneficiaries and totaling roughly $702K in drug spend, split 13% brand-name and 87% 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

300 W SAINT MARY BLVD
LAFAYETTE, LA 70506

Provider Details

NPI 1275569485
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 06/23/2006

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 JUAN ZEIK, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$98

Largest payer

CALLIDITAS THERAPEUTICS US 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.

Brand vs generic prescribing mix · Typical

JUAN ZEIK, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,403 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.

1,403
Total Claims
$702K
Total Drug Cost
178
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,503
Total Day Supply
73,770
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$643K
Generic Drug Cost
$58K
Antibiotic Claims
27

Patient Demographics

Average Patient Age
68.2 years
Avg HCC Risk Score
4.21
Gender Split
44% female / 56% male

Top Prescribed Drugs (Medicare Part D)

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

What JUAN ZEIK, M.D. 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
Amlodipine Besylate
86
Torsemide
83
Allopurinol
77
Lisinopril
68
Hydrochlorothiazide
44
Spironolactone
41
Labetalol Hcl
40
Doxazosin Mesylate
37
Velphoro
Sucroferric Oxyhydroxide
37
Furosemide
36

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

Nephrology Physician Overview

How JUAN ZEIK, 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

JUAN ZEIK, M.D.'s 1,403 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 ZEIK.

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

Frequently Asked Questions

What is JUAN ZEIK, M.D.'s specialty?
JUAN ZEIK, M.D. specializes in Nephrology Physician and practices in LAFAYETTE, Louisiana. Credentials: M.D..
How much does JUAN ZEIK, M.D. prescribe under Medicare Part D?
In 2023, JUAN ZEIK, M.D. wrote 1,403 Medicare Part D claims totaling $702K in drug costs for 178 beneficiaries.
Where is JUAN ZEIK, M.D. located?
JUAN ZEIK, M.D. is located at 300 W SAINT MARY BLVD, LAFAYETTE, LA, 70506. Phone: (337) 233-6593.
What is JUAN ZEIK, M.D.'s NPI number?
JUAN ZEIK, M.D.'s National Provider Identifier (NPI) is 1275569485, issued on 06/23/2006.
Does JUAN ZEIK, M.D. prescribe more brand-name or generic drugs?
JUAN ZEIK, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $643K 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 JUAN ZEIK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JUAN ZEIK, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Torsemide, Allopurinol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JUAN ZEIK, M.D. accept Medicare?
JUAN ZEIK, M.D. appears in CMS Medicare data with 1,403 Part D claims and 178 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JUAN ZEIK, M.D.'s credentials?
JUAN ZEIK, M.D.'s NPI is 1275569485 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