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Gastroenterology

Steven Villanueva, MD

Works at hospitals in Jacksonville, FL · Saint Augustine, FL · Florida

Summary

Dr. Steven Villanueva, MD is a gastroenterologist at 40 Groover Loop, Suite 200, St Augustine, FL 32086. Phone: (904) 824-6108. Accepts Medicare assignment. In 2024, Steven Villanueva had 665 Original Medicare patients and 1,425 services. NPI 1730141193. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 40 Groover Loop, Suite 200, St Augustine, FL 32086 · Directions (1 more location)
  • Phone: (904) 824‑6108
  • Medicare: Accepts Medicare assignment
  • Hospitals: Baptist Health Medical Center - Jacksonville, Flagler Hospital
  • Group practice: Borland Groover Clinic, PA
  • Medical school: graduated 1981 (45 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Steven Villanueva, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Steven Villanueva accept Medicare assignment?
Yes. Medicare's clinician data says Steven Villanueva accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Steven Villanueva see?
In 2024, CMS data shows 665 Original Medicare patients and 1,425 services for Steven Villanueva. This counts Original Medicare only and measures volume, not quality.
What is Steven Villanueva's NPI number?
1730141193. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Steven Villanueva, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients665
Services billed to Medicare1,425
Different services or procedures29
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)266 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)235 services
  3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)169 services
  4. Biopsy of large bowel using a flexible endoscope (45380)126 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)104 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis53%
  • Ischemic heart disease40%
  • Diabetes29%
  • Anxiety26%

Hospitals where Steven Villanueva works

Medicare's Facility Affiliation Data lists Steven Villanueva at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Steven Villanueva is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Steven Villanueva as a member of this group (CMS data updated October 2, 2026).

  • Borland Groover Clinic, PA130 clinicians in the group

Specialties

Find other Gastroenterology doctors in Florida →

Other gastroenterologists in St Augustine

Clinicians with the same Medicare primary specialty in St Augustine, FL — not a recommendation.

All gastroenterologists in St Augustine →

Other clinicians in Borland Groover Clinic, PA

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1981 (45 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1730141193
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians