NPPES file of Aug 9, 2026

Cathy Cassube Underhill, ARNP

Family Nurse Practitioner · Trenton, FL

Cathy Cassube Underhill, ARNP is a family nurse practitioner with a practice address in Trenton, Florida, and NPI 1437468147, issued on Sep 29, 2010. Check the license (Florida ARNP2047432, as entered in NPPES) on the Florida health license search; 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
1437468147
Name
Cathy Cassube Underhill
Credential
ARNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
ARNP2047432 FL
Self-reported in NPPES; status is on the state search
Practice location
911 S Main St, Trenton, FL 32693
Phone
(352) 463-2374
Enumerated
Sep 29, 2010
Record last updated
Sep 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(352) 463-4507
Medicaid ID
02783600 FL
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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8 nearest family nurse practitioner records → All 22,340 in Florida → Look up another NPI →

Also registered at 911 S Main St

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

  1. Rana Azhan Ahmad, DDSDentist1750124335
  2. Hans Cancel Villamil, MDFamily Medicine Physician1497104475
  3. Christine Chapman, DOFamily Medicine Physician1770517450
  4. Maya Duffy, LCSWSocial Worker1760859136
  5. Carl Dufour, MSN, FNP-BCFamily Nurse Practitioner1912214099
  6. John Frazier, D.C.Chiropractor1932157401

Verify Cathy Cassube Underhill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ARNP2047432    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 Florida license search

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82% fewer Medicare Part D claims than the average family nurse practitioner in 2024

236 Medicare Part D claims for 20 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Cathy Underhill236
  2. Specialty average1,305

Most prescribed

  1. Ibuprofen32 claims
  2. Amlodipine Besylate19 claims
  3. Atorvastatin Calcium15 claims
  4. Lisinopril15 claims
  5. Omeprazole15 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: $146.06

1 payment: food and beverage; the largest payer was Nevro Corp. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cathy Underhill$146.06
  2. Specialty average$650.95

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

Cathy Cassube Underhill among 22,340 family nurse practitioner records in Florida

Cathy Cassube Underhill, ARNP is one of 22,340 family nurse practitioner records with a practice address in Florida. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 10% of them.

  • NPI issued2010 · 10% of these records are older, 89% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2011 · 34% 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 Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 family nurse practitioner records list a practice address in Trenton

They are 18 of the 109 NPPES records with a practice address in Trenton, and 22,340 family nurse practitioner records in Florida.

All 22,340 in Florida → Every provider in Trenton → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Logan Andrews, APRN, FNP-BCTrenton, FL 326931578101226
  2. Sheila Bair, FNPTrenton, FL 326931932895877
  3. Jennifer Banner, ARNPTrenton, FL 326931043590763
  4. Sarah Bradshaw, APRNTrenton, FL 326931528812609
  5. Paula Davis, MSN, APRN-BCTrenton, FL 326931780791335
  6. Carl Dufour, MSN, FNP-BCTrenton, FL 326931912214099
  7. Camille Jefferson, FNP-CTrenton, FL 326931760170765
  8. Nicole Leach, APRNTrenton, FL 326931780366740

Common questions

What is Cathy Cassube Underhill, ARNP's NPI number?

Cathy Cassube Underhill, ARNP's National Provider Identifier (NPI) is 1437468147, issued on Sep 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Cathy Cassube Underhill, ARNP located?

The NPPES record lists a practice address at 911 S Main St, Trenton, FL, 32693. Phone: (352) 463-2374. Providers update this record themselves, so call before visiting.

How can I verify Cathy Cassube Underhill, ARNP's license?

NPPES lists Florida license number ARNP2047432, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Cathy Cassube Underhill, ARNP prescribe under Medicare Part D?

In 2024, Cathy Cassube Underhill, ARNP had 236 Medicare Part D claims for 20 beneficiaries; 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.

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.