Quick answers
- Does Joanna Kingsley Tavarez accept Medicare assignment?
- Yes. Medicare's clinician data says Joanna Kingsley Tavarez 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 Joanna Kingsley Tavarez see?
- In 2024, CMS data shows 336 Original Medicare patients and 973 services for Joanna Kingsley Tavarez. This counts Original Medicare only and measures volume, not quality.
- What is Joanna Kingsley Tavarez's NPI number?
- 1346661857. 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 Joanna Kingsley Tavarez, 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 | 336 |
|---|---|
| Services billed to Medicare | 973 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Advance care planning, first 30 minutes (99497)276 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)173 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)97 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)77 services
- Hospital discharge day management, more than 30 minutes (99239)74 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 cholesterol75%
- Arthritis75%
- High blood pressure74%
- Anxiety27%
- Depression26%
- Ischemic heart disease23%
Practice locations
Addresses where Joanna Kingsley Tavarez is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 Broadway, Suite 300Oakland, CA 94607 (925) 460‑9191
Group practices
Medicare enrollment lists Joanna Kingsley Tavarez as a member of this group (CMS data updated October 2, 2026).
- Geniemd Medical Group Mo PC23 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Oakland
Clinicians with the same Medicare primary specialty in Oakland, CA — not a recommendation.
Other clinicians in Geniemd Medical Group Mo PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346661857 |
| 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