NPPES file of Aug 9, 2026

Lauren Miller Masterson, APRN

Family Nurse Practitioner · Louisville, KY

Lauren Miller Masterson, APRN is a family nurse practitioner with a practice address in Louisville, Kentucky, and NPI 1518388982, issued on Jan 2, 2014. Check the license (Kentucky 3008448, as entered in NPPES) with the Kentucky board that licenses this profession; 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
1518388982
Name
Lauren Miller Masterson
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
3008448 KY
Self-reported in NPPES; status is on the state search
Practice location
401 E Chestnut St Unit 510, Louisville, KY 40202
Phone
(502) 588-4800
Enumerated
Jan 2, 2014
Record last updated
Feb 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(502) 588-4801
Medicaid IDs
7100273300 KY
201260240 IN
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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Also registered at 401 E Chestnut St Unit 510

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hanah Alley, MDNeurology Physician1154908846
  2. Nancy Ashley, NPNurse Practitioner1083731061
  3. Cathy BaysAdult Health Nurse Practitioner1093115503
  4. Brittany Chapman, MDNeurology Physician1417119082
  5. Roberto Chulluncuy Rivas, MDVascular Neurology Physician1699385096
  6. Rolando Cordoves Feria, MDNeurology Physician1104403690

Verify Lauren Miller Masterson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Kentucky board licenses this profession
    Search for license 3008448
    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
Find 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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98% fewer Medicare Part D claims than the average family nurse practitioner in 2024

28 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Lauren Masterson28
  2. Specialty average1,305

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.

Lauren Miller Masterson among 5,545 family nurse practitioner records in Kentucky

Lauren Miller Masterson, APRN is one of 5,545 family nurse practitioner 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 2014, is newer than 27% of them.

  • NPI issued2014 · 27% of these records are older, 69% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2020 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,321 family nurse practitioner records list a practice address in Louisville

They are 1,321 of the 21,891 NPPES records with a practice address in Louisville, and 5,545 family nurse practitioner records in Kentucky.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kathy Bertolone, RN MSW ARNP CFNPLouisville, KY 402021922088608
  2. Nancy Cahill, APRNLouisville, KY 402021952399628
  3. Teresa Casey, APRNLouisville, KY 402021265411250
  4. Janice Fiechter, APRNLouisville, KY 402021205832961
  5. Eileen Grigutis, ARNPLouisville, KY 402021639117328
  6. Ana Grynwald, ARNPLouisville, KY 402021780649228
  7. Melissa Humphreys, ARNPLouisville, KY 402021215993969
  8. Stacy Jensen, APRNLouisville, KY 402021114993441

Common questions

What is Lauren Miller Masterson, APRN's NPI number?

Lauren Miller Masterson, APRN's National Provider Identifier (NPI) is 1518388982, issued on Jan 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Lauren Miller Masterson, APRN located?

The NPPES record lists a practice address at 401 E Chestnut St Unit 510, Louisville, KY, 40202. Phone: (502) 588-4800. Providers update this record themselves, so call before visiting.

How can I verify Lauren Miller Masterson, APRN's license?

NPPES lists Kentucky license number 3008448, as entered by the provider. Search the Kentucky board that licenses this profession; the NPPES record confirms identity only.

How much does Lauren Miller Masterson, APRN prescribe under Medicare Part D?

In 2024, Lauren Miller Masterson, APRN had 28 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.