Quick answers
- Does Antoinette U. Guijo accept Medicare assignment?
- Yes. Medicare's clinician data says Antoinette U. Guijo 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 Antoinette U. Guijo see?
- In 2024, CMS data shows 109 Original Medicare patients and 2,445 services for Antoinette U. Guijo. This counts Original Medicare only and measures volume, not quality.
- What is Antoinette U. Guijo's NPI number?
- 1255889242. 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 Antoinette U. Guijo, 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 | 109 |
|---|---|
| Services billed to Medicare | 2,445 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)129 services
- Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less (15271)95 services
- Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month (99491)53 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)25 services
- Transitional care management services for problem of high complexity (99496)19 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%
- Depression54%
- Alzheimer's disease or dementia52%
- Diabetes45%
- Anxiety43%
Practice locations
Addresses where Antoinette U. Guijo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1451 River Park Dr, Suite 213Sacramento, CA 95815 (916) 365‑9100
Group practices
Medicare enrollment lists Antoinette U. Guijo as a member of these groups (CMS data updated October 2, 2026).
- American River Nursing Services Apc6 clinicians in the group
- Atrium Wound Care, PLLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Other clinicians in American River Nursing Services Apc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255889242 |
| 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