Quick answers
- Does Hideaki L. Tanaka accept Medicare assignment?
- Yes. Medicare's clinician data says Hideaki L. Tanaka 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 Hideaki L. Tanaka see?
- In 2024, CMS data shows 74 Original Medicare patients and 668 services for Hideaki L. Tanaka. This counts Original Medicare only and measures volume, not quality.
- What is Hideaki L. Tanaka's NPI number?
- 1124280730. 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 Hideaki L. Tanaka, 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 | 74 |
|---|---|
| Services billed to Medicare | 668 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Management of oxygen chamber therapy (99183)130 services
- Removal of skin and tissue, 20.0 sq cm or less (11042)107 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)74 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)31 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%
- Diabetes57%
- Arthritis55%
- Chronic kidney disease53%
- Atrial fibrillation49%
Practice locations
Addresses where Hideaki L. Tanaka is enrolled with Medicare (CMS data updated October 2, 2026).
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 740‑6000
Group practices
Medicare enrollment lists Hideaki L. Tanaka as a member of this group (CMS data updated October 2, 2026).
- Leo Tanaka MD Inc3 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in La Mesa
Clinicians with the same Medicare primary specialty in La Mesa, CA — not a recommendation.
Other clinicians in Leo Tanaka MD Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Uniformed Services Uhs Fe Hebert School Of Med |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124280730 |
| 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