Quick answers
- Does Audrey O. Tio accept Medicare assignment?
- Yes. Medicare's clinician data says Audrey O. Tio 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 Audrey O. Tio see?
- In 2024, CMS data shows 738 Original Medicare patients and 739 services for Audrey O. Tio. This counts Original Medicare only and measures volume, not quality.
- What is Audrey O. Tio's NPI number?
- 1033125729. 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 Audrey O. Tio, 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 | 738 |
|---|---|
| Services billed to Medicare | 739 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)691 services
- Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (G0438)40 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 pressure71%
- High cholesterol68%
- Arthritis43%
- Diabetes30%
- Ischemic heart disease29%
- Chronic kidney disease28%
Practice locations
Addresses where Audrey O. Tio is enrolled with Medicare (CMS data updated October 2, 2026).
- 1011 Sylvan Ave, Suite CModesto, CA 95350 (209) 550‑4780
- 370 Distel CirLos Altos, CA 94022 (650) 254‑5200
- 600 Coffee RdModesto, CA 95355 (209) 524‑1211
- 701 E El Camino RealMountain View, CA 94040 (650) 691‑6174
Group practices
Medicare enrollment lists Audrey O. Tio as a member of these groups (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1033125729 |
| 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
- 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