Lawrence J. Rueff, M.D.
Internal Medicine Physician · Louisville, KY
Lawrence J. Rueff, M.D. is an internal medicine physician with a practice address in Louisville, Kentucky, and NPI 1891789996, issued on Sep 2, 2005. Check the license (Kentucky 26028, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Lawrence J. Rueff
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 26028 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4001 Kresge Way Ste 315, Louisville, KY 40207
- Phone
- (502) 384-8520
- Enumerated
- Sep 2, 2005
- Record last updated
- Feb 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (502) 895-6638
- Medicaid IDs
- 64260284 KY
1049435 KY - Medicare enrollment
- Enrolled (PECOS I20100326000834); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Verify Lawrence J. Rueff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 26028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average internal medicine physician in 2024
3,797 Medicare Part D claims for 230 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium327 claims
- Tamsulosin Hcl156 claims
- Amlodipine Besylate155 claims
- Levothyroxine Sodium142 claims
- Furosemide122 claims
- Metoprolol Succinate121 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.
The MIPS final score for 2023 (Medicare payment program): 78.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.08
1 payment: food and beverage; the largest payer was Amgen 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Lawrence J. Rueff among 1,526 internal medicine physician records in Kentucky
Lawrence J. Rueff, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1985 · median 2006 among the 1,025 with a school on file
- Record last updated2019 · 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.
All 1,526 in Kentucky → Every provider in Louisville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Zhalet Baharestan, D.O.Louisville, KY 402071962489559
- Arthur Blanford, M.D.Louisville, KY 402071427042621
- Henry Byrum, MDLouisville, KY 402071447215181
- Joseph Cecil, M.D.Louisville, KY 402071285616730
- Michael Dee, MDLouisville, KY 402071114911005
- Juliana Hayden, M.D.Louisville, KY 402071639134331
- Mary Lewis, M.D.Louisville, KY 402071467434365
- Svitlana Mandzy, M.D.Louisville, KY 402071750375861
Common questions
What is Lawrence J. Rueff, M.D.'s NPI number?
Lawrence J. Rueff, M.D.'s National Provider Identifier (NPI) is 1891789996, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Lawrence J. Rueff, M.D. located?
The NPPES record lists a practice address at 4001 Kresge Way Ste 315, Louisville, KY, 40207. Phone: (502) 384-8520. Providers update this record themselves, so call before visiting.
How can I verify Lawrence J. Rueff, M.D.'s license?
NPPES lists Kentucky license number 26028, 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 Lawrence J. Rueff, M.D. prescribe under Medicare Part D?
In 2024, Lawrence J. Rueff, M.D. had 3,797 Medicare Part D claims for 230 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lawrence J. Rueff, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.