Quick answers
- Does Rachel K. Mills accept Medicare assignment?
- Yes. Medicare's clinician data says Rachel K. Mills 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 Rachel K. Mills see?
- In 2024, CMS data shows 114 Original Medicare patients and 187 services for Rachel K. Mills. This counts Original Medicare only and measures volume, not quality.
- What is Rachel K. Mills's NPI number?
- 1831805613. 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 Rachel K. Mills, 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 | 114 |
|---|---|
| Services billed to Medicare | 187 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)47 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)39 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)15 services
- Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)14 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 cholesterol68%
- High blood pressure61%
- Arthritis45%
- Osteoporosis24%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)22%
- Diabetes19%
Practice locations
Addresses where Rachel K. Mills is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 1310 El Camino Real, Suite I JSan Bruno, CA 94066 (650) 270‑2395
- 170 Columbus Ave, Suite 110San Francisco, CA 94133 (415) 965‑8050
- 199 W Portal AveSan Francisco, CA 94127 (415) 821‑8798
- 2288 Market StSan Francisco, CA 94114 (415) 964‑4855
- 2395 Lombard StSan Francisco, CA 94123 (415) 796‑2242
Group practices
Medicare enrollment lists Rachel K. Mills as a member of this group (CMS data updated October 2, 2026).
- UCSF Health Medical Foundation66 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Bruno
Clinicians with the same Medicare primary specialty in San Bruno, CA — not a recommendation.
Other clinicians in UCSF Health Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831805613 |
| 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