2026 NPPES data Hospitalist Physician NPI 1639699242 MD
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Kanjit Leungsuwan, MD

Hospitalist Physician in Lexington, Kentucky. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,825 in Hospitalist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
102
Medicare Part D claims · 18 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$581.05
7 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kanjit Leungsuwan, MD filed 102 Medicare Part D claims in 2023 as a Hospitalist Physician in Lexington, Kentucky, prescribing 82% generic.

102
Part D claims, 2023
82%
generic prescribing
$581.05
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.

Kanjit Leungsuwan, MD's Medicare Part D volume vs every U.S. prescriber

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

102 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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. 2K+: 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)

Kanjit Leungsuwan, 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 Kanjit Leungsuwan, MD?

Quality data not reported

NPI registry status

Active

Issued 06/24/2017

NPI 1639699242

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

102 89% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Kentucky

How Hospitalist Physician compares to other specialties among Kentucky providers

Kentucky providers
Family Nurse Practitioner - 5.9%Family Nurse Practitioner5.9%Student in an Organized Health Care Education/Training Program - 5.2%Student in an Organized Health Care Education/Training Program5.2%Pharmacist - 4.8%Pharmacist4.8%Mental Health Counselor - 4.6%Mental Health Counselor4.6%Clinical Social Worker - 4.1%Clinical Social Worker4.1%Physical Therapist - 3.7%Physical Therapist3.7%Hospitalist Physician - 0.2%Hospitalist Physician0.2%
Largest specialties in Kentucky (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hospitalist Physician. Verify directly:

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).

Kanjit Leungsuwan, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 800 ROSE ST, Lexington, KY, 40536, with a listed phone of (859) 323-0295. NPI 1639699242 was issued on 06/24/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Leungsuwan 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 102 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $10K in drug spend, split 18% brand-name and 82% 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

800 ROSE ST
Lexington, KY 40536

Provider Details

NPI 1639699242
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 06/24/2017

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 Kanjit Leungsuwan, MD. Source: openpaymentsdata.cms.gov.

Total received

$581

Largest payer

Abbott Laboratories

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

Kanjit Leungsuwan, MD - brand share 18.0%
Hospitalist Physician average

18% brand-name claims vs 82% generic, on 102 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.

102
Total Claims
$10K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
146
Total Day Supply
4,177
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$9K
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
2.04

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Metoprolol Succinate
22
Isosorbide Mononitrate Er
Isosorbide Mononitrate
13

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

Hospitalist Physician Overview

How Kanjit Leungsuwan, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

Kanjit Leungsuwan, MD's 102 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Kentucky

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Kentucky medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hospitalist Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Kanjit Leungsuwan, MD's specialty?
Kanjit Leungsuwan, MD specializes in Hospitalist Physician and practices in Lexington, Kentucky. Credentials: MD.
How much does Kanjit Leungsuwan, MD prescribe under Medicare Part D?
In 2023, Kanjit Leungsuwan, MD wrote 102 Medicare Part D claims totaling $10K in drug costs for 18 beneficiaries.
Where is Kanjit Leungsuwan, MD located?
Kanjit Leungsuwan, MD is located at 800 ROSE ST, Lexington, KY, 40536. Phone: (859) 323-0295.
What is Kanjit Leungsuwan, MD's NPI number?
Kanjit Leungsuwan, MD's National Provider Identifier (NPI) is 1639699242, issued on 06/24/2017.
Does Kanjit Leungsuwan, MD prescribe more brand-name or generic drugs?
Kanjit Leungsuwan, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $9K in brand drug costs.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Kanjit Leungsuwan, MD prescribe most often?
Based on 2023 Medicare Part D data, Kanjit Leungsuwan, MD's most frequently prescribed drugs include Metoprolol Succinate, Isosorbide Mononitrate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kanjit Leungsuwan, MD accept Medicare?
Kanjit Leungsuwan, MD appears in CMS Medicare data with 102 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kanjit Leungsuwan, MD's credentials?
Kanjit Leungsuwan, MD's NPI is 1639699242 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

Compiled from official public sources by the PlainDoctor editorial team.