NPPES file of Aug 9, 2026

Katherine Castillo, APRN

Family Nurse Practitioner · Louisville, KY

Katherine Castillo, APRN is a family nurse practitioner with a practice address in Louisville, Kentucky, and NPI 1407260599, issued on Jun 17, 2014. Check the license (Kentucky 3008678, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407260599
Name
Katherine Castillo
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
3008678 KY
Self-reported in NPPES; status is on the state search
Practice location
201 Abraham Flexner Way, Louisville, KY 40202
Phone
(502) 589-3173
Enumerated
Jun 17, 2014
Record last updated
Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(502) 589-6751
Medicaid ID
7100305650 KY
Medicare enrollment
Enrolled (PECOS I20140917003161); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 5,545 in Kentucky → Look up another NPI →

Also registered at 201 Abraham Flexner Way

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

  1. Syed Abbas, MDInternal Medicine Physician1285081398
  2. Suresh Alankar, MDVascular Surgery Physician1669404265
  3. Abdulmajeed Aljuhiman, MDCardiovascular Disease Physician1730735556
  4. Sawsan Almasri, PAPhysician Assistant1235896572
  5. Forest Arnold, DOInfectious Disease Physician1134119472
  6. Erle Austin, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1710926290

Verify Katherine Castillo 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 3008678    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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Bills Medicare through one group practice

  1. Pinnacle Inpatient Medical Services, PLLCLouisville, KY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katherine Castillo among 5,545 family nurse practitioner records in Kentucky

Katherine Castillo, 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 fileYes · 69% of these records are
  • Graduated2014 · median 2018 among the 3,839 with a school on file
  • Record last updated2018 · 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.

All 5,545 in Kentucky → Every provider in Louisville → Family Nurse Practitioner nationwide →

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 Katherine Castillo, APRN's NPI number?

Katherine Castillo, APRN's National Provider Identifier (NPI) is 1407260599, issued on Jun 17, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Castillo, APRN located?

The NPPES record lists a practice address at 201 Abraham Flexner Way, Louisville, KY, 40202. Phone: (502) 589-3173. Providers update this record themselves, so call before visiting.

How can I verify Katherine Castillo, APRN's license?

NPPES lists Kentucky license number 3008678, as entered by the provider. Search the Kentucky board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.