Ryan Villarreal, MD
NPI 1891359535 · Internal Medicine Physician · Winter Haven, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Villarreal, MD is a Internal Medicine Physician provider in Winter Haven, FL (NPI 1891359535).
Provider details
- NPI number
- 1891359535
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME155462 (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
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,589 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 271 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 268 | $124 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 220 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 207 | $10 |
| Hemoglobin A1c Level83036 | 177 | $10 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 143 | $3 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 135 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 559 | 221 |
| Losartan Potassium | 405 | 164 |
| Amlodipine Besylate | 377 | 148 |
| Rosuvastatin Calcium | 356 | 155 |
| Levothyroxine Sodium | 336 | 117 |
| Metformin Hcl | 232 | 106 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$438 across 22 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
Additional practice locations (1)
- 3000 Woodmont AveWinter Haven, FL 33884-3800Phone: (863) 293-1191Fax: (863) 293-8035
Registry dates
- Enumerated
- 2019-04-29
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Ryan Villarreal's NPI number?
- Ryan Villarreal's National Provider Identifier (NPI) is 1891359535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Villarreal's specialty?
- Ryan Villarreal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Villarreal located?
- Ryan Villarreal's practice location on file with NPPES is 325 1st St N, Winter Haven, FL 33881-4111.
- What is Ryan Villarreal's phone number?
- The practice phone number listed in the NPPES registry for Ryan Villarreal is (863) 293-1191.
- Does Ryan Villarreal accept Medicare?
- Ryan Villarreal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Villarreal's NPI active?
- Yes — Ryan Villarreal's NPI (1891359535) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.