NPPES file of Aug 9, 2026

David Nanlin Liu, MD

Internal Medicine Physician · Louisville, KY

David Nanlin Liu, MD is an internal medicine physician with a practice address in Louisville, Kentucky, and NPI 1548825417, issued on May 7, 2019. Check the license (Kentucky 61049, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548825417
Name
David Nanlin Liu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
61049 KY
R6293 KY
Self-reported in NPPES; status is on the state search
Practice location
550 South Jackson Street 3RD Floor, Ste. A3L15, Louisville, KY 40202
Phone
(502) 588-4600
Enumerated
May 7, 2019
Record last updated
Jul 1, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify David Nanlin Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 61049
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Kentucky license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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94% fewer Medicare Part D claims than the average internal medicine physician in 2024

178 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. David Liu178
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $741.30

6 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Liu$741.30
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

David Nanlin Liu among 1,526 internal medicine physician records in Kentucky

David Nanlin Liu, MD is one of 1,526 internal medicine physician records with a practice address in Kentucky. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.

  • NPI issued2019 · 84% of these records are older, 12% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2025 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

457 internal medicine physician records list a practice address in Louisville

They are 457 of the 21,891 NPPES records with a practice address in Louisville, and 1,526 internal medicine physician records in Kentucky.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Britt, M.D.Louisville, KY 402021265424824
  2. Keith Carter, M.D.Louisville, KY 402021134111792
  3. Barbara Casper, MDLouisville, KY 402021124013776
  4. Jason Chesney, MDLouisville, KY 402021407837917
  5. Matthew Fargen, MDLouisville, KY 402021376534719
  6. Haeshik Gorr, MDLouisville, KY 402021821083478
  7. Jennifer Koch, MDLouisville, KY 402021134114788
  8. Rick Lawson, M.D.Louisville, KY 402021689676504

Common questions

What is David Nanlin Liu, MD's NPI number?

David Nanlin Liu, MD's National Provider Identifier (NPI) is 1548825417, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is David Nanlin Liu, MD located?

The NPPES record lists a practice address at 550 South Jackson Street 3RD Floor, Ste. A3L15, Louisville, KY, 40202. Phone: (502) 588-4600. Providers update this record themselves, so call before visiting.

How can I verify David Nanlin Liu, MD's license?

NPPES lists Kentucky license number 61049, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Nanlin Liu, MD prescribe under Medicare Part D?

In 2024, David Nanlin Liu, MD had 178 Medicare Part D claims for 31 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.