Quick answers
- Does Sandee C. San Mateo accept Medicare assignment?
- Yes. Medicare's clinician data says Sandee C. San Mateo 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 Sandee C. San Mateo see?
- In 2024, CMS data shows 179 Original Medicare patients and 1,135 services for Sandee C. San Mateo. This counts Original Medicare only and measures volume, not quality.
- What is Sandee C. San Mateo's NPI number?
- 1609543909. 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 Sandee C. San Mateo, 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 | 179 |
|---|---|
| Services billed to Medicare | 1,135 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)362 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)355 services
- Psychiatric services complicated by communication factor (90785)162 services
- Psychiatric diagnostic evaluation with medical services (90792)134 services
- Psychiatric diagnostic evaluation (90791)27 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%
- Depression75%
- Diabetes56%
- Anxiety56%
- Alzheimer's disease or dementia54%
Practice locations
Addresses where Sandee C. San Mateo is enrolled with Medicare (CMS data updated October 2, 2026).
- 914 E 8th St, Suite 210National City, CA 91950 (619) 306‑3920
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in National City
Clinicians with the same Medicare primary specialty in National City, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609543909 |
| 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