Quick answers
- Does Athena Philis-Tsimikas accept Medicare assignment?
- Yes. Medicare's clinician data says Athena Philis-Tsimikas 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 Athena Philis-Tsimikas see?
- In 2024, CMS data shows 153 Original Medicare patients and 954 services for Athena Philis-Tsimikas. This counts Original Medicare only and measures volume, not quality.
- What is Athena Philis-Tsimikas's NPI number?
- 1922105964. 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 Athena Philis-Tsimikas, 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 | 153 |
|---|---|
| Services billed to Medicare | 954 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Diabetes outpatient self-management training services, group session (2 or more), per 30 minutes (G0109)787 services
- Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)108 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)30 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)15 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%
- Diabetes75%
- Arthritis47%
- Ischemic heart disease33%
- Chronic kidney disease31%
Practice locations
Addresses where Athena Philis-Tsimikas is enrolled with Medicare (CMS data updated October 2, 2026).
- 1809 National AveSan Diego, CA 92113 (619) 515‑2300
- 8788 Jamacha RdSpring Valley, CA 91977 (619) 515‑2555
- 9834 Genesee Ave, Suite 300La Jolla, CA 92037 (858) 678‑7050
Group practices
Medicare enrollment lists Athena Philis-Tsimikas as a member of these groups (CMS data updated October 2, 2026).
- Scripps Health1,433 clinicians in the group
- Family Health Centers of San Diego Inc311 clinicians in the group
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Other clinicians in Scripps Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1922105964 |
| 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