Quick answers
- Does Annette J. Gantz accept Medicare assignment?
- Yes. Medicare's clinician data says Annette J. Gantz 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 Annette J. Gantz see?
- In 2024, CMS data shows 496 Original Medicare patients and 76,883 services for Annette J. Gantz. This counts Original Medicare only and measures volume, not quality.
- What is Annette J. Gantz's NPI number?
- 1245753730. 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 Annette J. Gantz, 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 patients | 496 |
|---|---|
| Services billed to Medicare | 76,883 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, romosozumab-aqqg, 1 mg (J3111)65,520 services
- Injection, denosumab, 1 mg (J0897)9,420 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)513 services
- Injection of drug or substance under skin or into muscle (96372)478 services
- Injection, zoledronic acid, 1 mg (J3489)220 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%
- Arthritis75%
- Osteoporosis75%
- High blood pressure72%
- Ischemic heart disease28%
- Anxiety26%
Hospitals where Annette J. Gantz works
Medicare's Facility Affiliation Data lists Annette J. Gantz 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.
- Cuero Regional HospitalCuero, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450597
- Doctors Hospital of LaredoLaredo, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450643
Practice locations
Addresses where Annette J. Gantz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 Brooklyn Ave, Suite 130San Antonio, TX 78212 (210) 448‑1499
- 540 Oak Centre Dr, Suite 260San Antonio, TX 78258 (210) 448‑1499
Group practices
Medicare enrollment lists Annette J. Gantz as a member of this group (CMS data updated October 2, 2026).
- Texas Bone Health and Wellness Center2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Texas Bone Health and Wellness Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1245753730 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians