NPPES file of Aug 9, 2026

Alexander Tan Villacastin, ARNP

Adult Health Nurse Practitioner · Citrus Springs, FL

Alexander Tan Villacastin, ARNP is an adult health nurse practitioner with a practice address in Citrus Springs, Florida, and NPI 1174720619, issued on Jun 28, 2007. Check the license (Florida ARNP2986862, 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
1174720619
Name
Alexander Tan Villacastin
Credential
ARNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
ARNP2986862 FL
Self-reported in NPPES; status is on the state search
Practice location
10489 N Florida Ave, Citrus Springs, FL 34434
Phone
(352) 489-2486
Enumerated
Jun 28, 2007
Record last updated
Oct 17, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(352) 489-5786
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 adult health nurse practitioner records → All 3,214 in Florida → Look up another NPI →

Also registered at 10489 N Florida Ave

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

  1. Alec Breckenridge, PA-CPhysician Assistant1285385088
  2. Angela McGonigal, ARNP, FNP-CFamily Nurse Practitioner1861909236
  3. Mina Serena Reburiano, APRNFamily Nurse Practitioner1285472795
  4. Jared Vanderpohl, PA-CPhysician Assistant1619546561
  5. Alex Villacastin, M.D.Internal Medicine Physician1194827097
  6. Sheila Villacastin, ARNPAdult Health Nurse Practitioner1164629614

Verify Alexander Tan Villacastin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ARNP2986862    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

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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8.5 times the Medicare Part D claims of the average adult health nurse practitioner in 2024

10,820 Medicare Part D claims for 849 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 409 claims were for opioids.

  1. Alexander Villacastin10,820
  2. Specialty average1,280

Most prescribed

  1. Rosuvastatin Calcium471 claims
  2. Atorvastatin Calcium453 claims
  3. Levothyroxine Sodium321 claims
  4. Alprazolam278 claims
  5. Lisinopril243 claims
  6. Amlodipine Besylate226 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: $1,458.54

61 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Villacastin$1,458.54
  2. Specialty average$946.40

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

Alexander Tan Villacastin among 3,214 adult health nurse practitioner records in Florida

Alexander Tan Villacastin, ARNP is one of 3,214 adult health nurse practitioner records with a practice address in Florida. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.

  • NPI issued2007 · 17% of these records are older, 78% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 49% of these records are
  • Record last updated2016 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 adult health nurse practitioner records list a practice address in Citrus Springs

They are 2 of the 44 NPPES records with a practice address in Citrus Springs, and 3,214 adult health nurse practitioner records in Florida.

All 3,214 in Florida → Every provider in Citrus Springs → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Sheila Villacastin, ARNPCitrus Springs, FL 344341164629614
  2. Megan Buncie, APRNDunnellon, FL 344321114748035
  3. Linda Halinski, ARNP LIC MENTAL HEALFloral City, FL 344361851431662
  4. Carla Lemker, NPDunnellon, FL 344321952736068
  5. Viviene Lumapas, NP-CDunnellon, FL 344311770855678
  6. Laura Horn, ARNPCrystal River, FL 344291194116020
  7. Janet Slawinski, CNPCrystal River, FL 344291114125101
  8. Karen Talamantes, APRNCrystal River, FL 344291467094367

Common questions

What is Alexander Tan Villacastin, ARNP's NPI number?

Alexander Tan Villacastin, ARNP's National Provider Identifier (NPI) is 1174720619, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Tan Villacastin, ARNP located?

The NPPES record lists a practice address at 10489 N Florida Ave, Citrus Springs, FL, 34434. Phone: (352) 489-2486. Providers update this record themselves, so call before visiting.

How can I verify Alexander Tan Villacastin, ARNP's license?

NPPES lists Florida license number ARNP2986862, 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 Alexander Tan Villacastin, ARNP prescribe under Medicare Part D?

In 2024, Alexander Tan Villacastin, ARNP had 10,820 Medicare Part D claims for 849 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.