2026 NPPES data Nephrology Physician NPI 1861652034 MD
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ZEINA KARAM, MD

Nephrology Physician in WASHINGTON, Missouri. 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 · 412 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$377.06
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ZEINA KARAM, MD is a Nephrology Physician ([object Object]) practicing in WASHINGTON, Missouri with a Medicare Part D prescribing footprint of 3K claims across 412 beneficiaries — 8% brand-name prescribing . Industry payments of $377.06 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ZEINA KARAM, MD filed 2,791 Medicare Part D claims in 2023 across WASHINGTON, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ZEINA KARAM, MD 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).

ZEINA KARAM, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/11/2008

NPI 1861652034

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

2,791 92% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Missouri

How Nephrology Physician compares to other specialties among Missouri providers

Missouri providers

Nephrology Physician share within Missouri

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

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).

ZEINA KARAM, MD is a Nephrology Physician provider practicing in WASHINGTON, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1861652034. 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.

ZEINA KARAM, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 901 PATIENTS FIRST DR, WASHINGTON, MO, 63090, with a listed phone of (636) 231-6260. NPI 1861652034 was issued on 06/11/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KARAM 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 2,791 prescription claims written by this provider, covering 412 Medicare beneficiaries and totaling roughly $144K in drug spend, split 8% brand-name and 92% 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

901 PATIENTS FIRST DR
WASHINGTON, MO 63090

Provider Details

NPI 1861652034
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 06/11/2008

Hospital and facility affiliations

Facilities where ZEINA KARAM, MD 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.

MERCY CLINIC NEPHROLOGY, LLC
WASHINGTON, MO

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 ZEINA KARAM, MD. Source: openpaymentsdata.cms.gov.

Total received

$377

Largest payer

NXSTAGE 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.

Brand vs generic prescribing mix · Generic-heavy

ZEINA KARAM, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 2,791 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.

2,791
Total Claims
$144K
Total Drug Cost
412
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,702
Total Day Supply
167,302
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$68K
Generic Drug Cost
$76K
Antibiotic Claims
47

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
3.47
Gender Split
49% female / 51% male
Age Distribution
<65: 69, 65-74: 176, 75-84: 127, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Furosemide
370
Amlodipine Besylate
274
Lisinopril
198
Losartan Potassium
149
Vitamin D2
Ergocalciferol (Vitamin D2)
116
Hydralazine Hcl
113
Nifedipine Er
Nifedipine
113
Carvedilol
105
Allopurinol
96
Calcitriol
84

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

Nephrology Physician Overview

How ZEINA KARAM, MD 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

ZEINA KARAM, MD's 2,791 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in Missouri

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

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

Frequently Asked Questions

What is ZEINA KARAM, MD's specialty?
ZEINA KARAM, MD specializes in Nephrology Physician and practices in WASHINGTON, Missouri. Credentials: MD.
How much does ZEINA KARAM, MD prescribe under Medicare Part D?
In 2023, ZEINA KARAM, MD wrote 2,791 Medicare Part D claims totaling $144K in drug costs for 412 beneficiaries.
Where is ZEINA KARAM, MD located?
ZEINA KARAM, MD is located at 901 PATIENTS FIRST DR, WASHINGTON, MO, 63090. Phone: (636) 231-6260.
What is ZEINA KARAM, MD's NPI number?
ZEINA KARAM, MD's National Provider Identifier (NPI) is 1861652034, issued on 06/11/2008.
Does ZEINA KARAM, MD prescribe more brand-name or generic drugs?
ZEINA KARAM, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $68K 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 ZEINA KARAM, MD prescribe most often?
Based on 2023 Medicare Part D data, ZEINA KARAM, MD's most frequently prescribed drugs include Furosemide, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZEINA KARAM, MD accept Medicare?
ZEINA KARAM, MD appears in CMS Medicare data with 2,791 Part D claims and 412 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZEINA KARAM, MD's credentials?
ZEINA KARAM, MD's NPI is 1861652034 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