Rex P. Lagerstrom, MD
Internal Medicine Physician · Louisville, KY
Rex P. Lagerstrom, MD is an internal medicine physician with a practice address in Louisville, Kentucky, and NPI 1083679880, issued on Apr 18, 2006. Check the license (Kentucky 24848, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Rex P. Lagerstrom
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 24848 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4003 Kresge Way Ste 410, Louisville, KY 40207
- Phone
- (502) 893-7462
- Enumerated
- Apr 18, 2006
- Record last updated
- Dec 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (502) 212-7550
- Medicaid ID
- 64248487 KY
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 4003 Kresge Way Ste 410
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Lackey, APRNNurse Practitioner1922755909
- Haley Murphy, APRN, FNP-CFamily Nurse Practitioner1124734819
- Joseph Murphy, MDFamily Medicine Physician1861443715
- William Napier, NPAdult Health Nurse Practitioner1730443763
- Amanda Terrell, APRNFamily Nurse Practitioner1760964852
Verify Rex P. Lagerstrom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 24848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
116 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Pramipexole Dihydrochloride13 claims
- Primidone13 claims
- Simvastatin13 claims
- Furosemide12 claims
- Potassium Chloride12 claims
- Spiriva Respimat11 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.
Rex P. Lagerstrom among 1,526 internal medicine physician records in Kentucky
Rex P. Lagerstrom, 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2020 · 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 Rex P. Lagerstrom, MD's NPI number?
Rex P. Lagerstrom, MD's National Provider Identifier (NPI) is 1083679880, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rex P. Lagerstrom, MD located?
The NPPES record lists a practice address at 4003 Kresge Way Ste 410, Louisville, KY, 40207. Phone: (502) 893-7462. Providers update this record themselves, so call before visiting.
How can I verify Rex P. Lagerstrom, MD's license?
NPPES lists Kentucky license number 24848, 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 Rex P. Lagerstrom, MD prescribe under Medicare Part D?
In 2024, Rex P. Lagerstrom, MD had 116 Medicare Part D claims; 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.