Quick answers
- Does Annie Shu accept Medicare assignment?
- Medicare's clinician data says Annie Shu may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Annie Shu see?
- In 2024, CMS data shows 63 Original Medicare patients and 210 services for Annie Shu. This counts Original Medicare only and measures volume, not quality.
- What is Annie Shu's NPI number?
- 1518058742. 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 Annie Shu, 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 | 63 |
|---|---|
| Services billed to Medicare | 210 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)112 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)46 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)38 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%
- Chronic kidney disease67%
- High blood pressure63%
- Diabetes40%
- Arthritis30%
- Ischemic heart disease19%
Practice locations
Addresses where Annie Shu is enrolled with Medicare (CMS data updated October 2, 2026).
- 632 W Duarte Rd, Suite 170Arcadia, CA 91007 (626) 445‑1278
Group practices
Medicare enrollment lists Annie Shu as a member of this group (CMS data updated October 2, 2026).
- Annie Shu and Michael Chu2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Arcadia
Clinicians with the same Medicare primary specialty in Arcadia, CA — not a recommendation.
Other clinicians in Annie Shu and Michael Chu
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1518058742 |
| 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