2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1659681351 MD
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KARIM EL-KERSH, MD

Sleep Medicine (Internal Medicine) Physician in LOUISVILLE, Kentucky. 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
253
Medicare Part D claims · 34 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
45%
generic claims · 55% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$45.8K
47 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KARIM EL-KERSH, MD filed 253 Medicare Part D claims in 2023 as a Sleep Medicine (Internal Medicine) Physician in LOUISVILLE, Kentucky, prescribing 45% generic.

253
Part D claims, 2023
45%
generic prescribing
Likely
board-certified (heuristic)

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.

KARIM EL-KERSH, MD's Medicare Part D volume vs every U.S. prescriber

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

253 49th percentile higher than 49% 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 certification likely (heuristic — not verified)

KARIM EL-KERSH, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about KARIM EL-KERSH, MD?

Quality data not reported

NPI registry status

Active

Issued 10/14/2010

NPI 1659681351

Primary specialty

Sleep Medicine (Internal Medicine) Physician

Niche

857 US NPIs in this specialty

Medicare Part D claims

253 81% vs specialty avg

2023 prescription claims

Specialty avg: 1,310

Specialty distribution in Kentucky

How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Kentucky providers

Kentucky providers

Sleep Medicine (Internal Medicine) Physician share within Kentucky

1. Sleep Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sleep Medicine (Internal Medicine) Physician share within Kentucky

Specialty board-certification context

Estimated specialty board-certified rate — Sleep Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sleep Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Sleep Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sleep Medicine (Internal Medicine) 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).

KARIM EL-KERSH, MD appears in the CMS NPPES registry as a Sleep Medicine (Internal Medicine) Physician provider holding MD credentials at 550 S JACKSON ST # A3R40, LOUISVILLE, KY, 40202, with a listed phone of (502) 852-5841. NPI 1659681351 was issued on 10/14/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EL-KERSH 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 253 prescription claims written by this provider, covering 34 Medicare beneficiaries and totaling roughly $2.0 million in drug spend, split 55% brand-name and 45% 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.

Sleep Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 857 enrolled providers across 52 states and an average of 1,310 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

550 S JACKSON ST # A3R40
LOUISVILLE, KY 40202

Provider Details

NPI 1659681351
Specialty Sleep Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 10/14/2010

Hospital and facility affiliations

Facilities where KARIM EL-KERSH, 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.

BANNER - UNIVERSITY HOSPITAL BASED PHYSICIANS LLC
PHOENIX, AZ
BANNER - UNIVERSITY PHYSICIAN SPECIALISTS LLC
PHOENIX, AZ

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 KARIM EL-KERSH, MD. Source: openpaymentsdata.cms.gov.

Total received

$45.8K

Largest payer

United Therapeutics Corporation

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 · Brand-heavy

KARIM EL-KERSH, MD — brand share 55.0%
Specialty average (est.)

55% brand-name claims vs 45% generic, on 253 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.

253
Total Claims
$2.0M
Total Drug Cost
34
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
287
Total Day Supply
8,249
Brand vs Generic
55% brand / 45% generic
Brand Drug Cost
$1.9M
Generic Drug Cost
$119K

Patient Demographics

Average Patient Age
65.6 years
Avg HCC Risk Score
3.06
Gender Split
65% female / 35% male
Age Distribution
<65: 14, 65-74: 13, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What KARIM EL-KERSH, 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
Sildenafil Citrate
51
Tadalafil
46
Tyvaso Dpi
Treprostinil
42
Opsumit
Macitentan
31
Adempas
Riociguat
16
Ambrisentan
13
Uptravi
Selexipag
12

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

Sleep Medicine (Internal Medicine) Physician Overview

How KARIM EL-KERSH, MD fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.

857
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,310
Avg Claims per Provider

KARIM EL-KERSH, MD's 253 claims are below the specialty average of 1,310.

Nearby Sleep Medicine (Internal Medicine) Physician Providers in Kentucky

Other clinicians with the same primary specialty enrolled in Kentucky, drawn from the same CMS NPPES roster as EL-KERSH.

Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KARIM EL-KERSH, MD's specialty?
KARIM EL-KERSH, MD specializes in Sleep Medicine (Internal Medicine) Physician and practices in LOUISVILLE, Kentucky. Credentials: MD.
How much does KARIM EL-KERSH, MD prescribe under Medicare Part D?
In 2023, KARIM EL-KERSH, MD wrote 253 Medicare Part D claims totaling $2.0M in drug costs for 34 beneficiaries.
Where is KARIM EL-KERSH, MD located?
KARIM EL-KERSH, MD is located at 550 S JACKSON ST # A3R40, LOUISVILLE, KY, 40202. Phone: (502) 852-5841.
What is KARIM EL-KERSH, MD's NPI number?
KARIM EL-KERSH, MD's National Provider Identifier (NPI) is 1659681351, issued on 10/14/2010.
Does KARIM EL-KERSH, MD prescribe more brand-name or generic drugs?
KARIM EL-KERSH, MD's prescribing is 55% brand-name and 45% generic drugs by claim count, with $1.9M in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US?
There are 857 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,310 Medicare Part D claims per year.
What drugs does KARIM EL-KERSH, MD prescribe most often?
Based on 2023 Medicare Part D data, KARIM EL-KERSH, MD's most frequently prescribed drugs include Sildenafil Citrate, Tadalafil, Tyvaso Dpi. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KARIM EL-KERSH, MD accept Medicare?
KARIM EL-KERSH, MD appears in CMS Medicare data with 253 Part D claims and 34 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KARIM EL-KERSH, MD's credentials?
KARIM EL-KERSH, MD's NPI is 1659681351 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