Quick answers
- Does Susan C. Lodenquai accept Medicare assignment?
- Medicare's clinician data says Susan C. Lodenquai may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Susan C. Lodenquai see?
- In 2024, CMS data shows 59 Original Medicare patients and 228 services for Susan C. Lodenquai. This counts Original Medicare only and measures volume, not quality.
- What is Susan C. Lodenquai's NPI number?
- 1336146257. 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 Susan C. Lodenquai, 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 | 59 |
|---|---|
| Services billed to Medicare | 228 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient problem focused exam of visual system (92012)56 services
- Photography of the retina (92250)45 services
- Imaging of retina (92134)35 services
- Exam of visual field with extended testing (92083)31 services
- Established patient complete exam of visual system (92014)28 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 cholesterol66%
- High blood pressure56%
- Arthritis31%
- Osteoporosis22%
Practice locations
Addresses where Susan C. Lodenquai is enrolled with Medicare (CMS data updated October 2, 2026).
- 2417 - 8a Naglee RdTracy, CA 95304 (209) 832‑6339
- 668 Fremont Ave, BLos Altos, CA 94024 (650) 948‑5061
Group practices
Medicare enrollment lists Susan C. Lodenquai as a member of this group (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Tracy
Clinicians with the same Medicare primary specialty in Tracy, CA — not a recommendation.
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2004 (22 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1336146257 |
| 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