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Obstetrics/Gynecology

Jose M. Ruiz Iii, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Jose M. Ruiz Iii, MD is an OB-GYN at 4458 Medical Dr, Suite 405, San Antonio, TX 78229. Phone: (210) 440-4149. Accepts Medicare assignment. In 2024, Jose M. Ruiz Iii had 60 Original Medicare patients and 133 services. NPI 1093705089. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 4458 Medical Dr, Suite 405, San Antonio, TX 78229 · Directions
  • Phone: (210) 440‑4149
  • Medicare: Accepts Medicare assignment
  • Hospital: Methodist Hospital
  • Group practice: Premier Ob-Gyn of Texas LLC
  • Medical school: Louisiana State University School Of Medicine In Shreveport · graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jose M. Ruiz Iii, 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 Jose M. Ruiz Iii accept Medicare assignment?
Yes. Medicare's clinician data says Jose M. Ruiz Iii 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 Jose M. Ruiz Iii see?
In 2024, CMS data shows 60 Original Medicare patients and 133 services for Jose M. Ruiz Iii. This counts Original Medicare only and measures volume, not quality.
What is Jose M. Ruiz Iii's NPI number?
1093705089. 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 Jose M. Ruiz Iii, 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 patients60
Services billed to Medicare133
Different services or procedures20
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 services
  2. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)19 services
  3. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)16 services
  4. Stool analysis for blood to screen for colon tumors (82270)11 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 pressure60%
  • Arthritis45%
  • Diabetes30%
  • Anxiety20%

Hospitals where Jose M. Ruiz Iii works

Medicare's Facility Affiliation Data lists Jose M. Ruiz Iii 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.

  • Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388

Practice locations

Addresses where Jose M. Ruiz Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jose M. Ruiz Iii as a member of this group (CMS data updated October 2, 2026).

  • Premier Ob-Gyn of Texas LLC3 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 →

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In Shreveport
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093705089
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