Quick answers
- Does Stayce K. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Stayce K. Sullivan 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 Stayce K. Sullivan see?
- In 2024, CMS data shows 106 Original Medicare patients and 866 services for Stayce K. Sullivan. This counts Original Medicare only and measures volume, not quality.
- What is Stayce K. Sullivan's NPI number?
- 1770139123. 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 Stayce K. Sullivan, 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 | 106 |
|---|---|
| Services billed to Medicare | 866 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)465 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)301 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)34 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)29 services
- Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan tha (G3002)25 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%
- Depression67%
- Alzheimer's disease or dementia62%
- High cholesterol58%
- Anxiety42%
- Arthritis38%
Practice locations
Addresses where Stayce K. Sullivan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1550 Silveira PkwySan Rafael, CA 94903 (415) 499‑1000
Group practices
Medicare enrollment lists Stayce K. Sullivan as a member of this group (CMS data updated October 2, 2026).
- Omar Osman Practice, LLC48 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Rafael
Clinicians with the same Medicare primary specialty in San Rafael, CA — not a recommendation.
Other clinicians in Omar Osman Practice, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770139123 |
| 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