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Obstetrics/Gynecology

Ariana L. Lewis, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Ariana L. Lewis, MD is an OB-GYN at 2121 SW 36th St, San Antonio, TX 78237. Phone: (210) 358-5100. Accepts Medicare assignment. In 2024, Ariana L. Lewis had 41 Original Medicare patients and 523 services. NPI 1386178374. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Ariana L. Lewis, 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 Ariana L. Lewis accept Medicare assignment?
Yes. Medicare's clinician data says Ariana L. Lewis 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 Ariana L. Lewis see?
In 2024, CMS data shows 41 Original Medicare patients and 523 services for Ariana L. Lewis. This counts Original Medicare only and measures volume, not quality.
What is Ariana L. Lewis's NPI number?
1386178374. 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 Ariana L. Lewis, 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 patients41
Services billed to Medicare523
Different services or procedures22
Participating Medicare providerYes
Average age of these patients64

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)14 services
  2. Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)12 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)12 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 cholesterol75%
  • High blood pressure63%
  • Arthritis54%
  • Anxiety39%
  • Diabetes34%

Hospitals where Ariana L. Lewis works

Medicare's Facility Affiliation Data lists Ariana L. Lewis 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 Ariana L. Lewis is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ariana L. Lewis as a member of these groups (CMS data updated October 2, 2026).

  • University of Texas Health Science Center at San Antonio1,297 clinicians in the group
  • Community Medicine Associates605 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Texas →

Other OB-GYNs in San Antonio

Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.

All OB-GYNs in San Antonio →

Other clinicians in University of Texas Health Science Center at San Antonio

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1386178374
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