Alex Villacastin, M.D.
NPI 1194827097 · Internal Medicine Physician · Citrus Springs, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alex Villacastin, M.D. is a Internal Medicine Physician provider in Citrus Springs, FL (NPI 1194827097).
Provider details
- NPI number
- 1194827097
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME071085 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,047 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,268 | $105 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 670 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 322 | $120 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 319 | $74 |
| Urinalysis, Manual Test81002 | 317 | $3 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 316 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 2,403 | 724 |
| Levothyroxine Sodium | 1,835 | 488 |
| Rosuvastatin Calcium | 1,418 | 459 |
| Losartan Potassium | 1,324 | 402 |
| Lisinopril | 1,222 | 391 |
| Amlodipine Besylate | 1,145 | 347 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,807 across 125 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2014-12-29
Frequently asked questions
- What is Alex Villacastin's NPI number?
- Alex Villacastin's National Provider Identifier (NPI) is 1194827097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alex Villacastin's specialty?
- Alex Villacastin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alex Villacastin located?
- Alex Villacastin's practice location on file with NPPES is 10489 N Florida Ave, Citrus Springs, FL 34434-3268.
- What is Alex Villacastin's phone number?
- The practice phone number listed in the NPPES registry for Alex Villacastin is (352) 489-2486.
- Does Alex Villacastin accept Medicare?
- Alex Villacastin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alex Villacastin's NPI active?
- Yes — Alex Villacastin's NPI (1194827097) is active in the NPPES registry as of the last update on 2014-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.