Quick answers
- Does Angelica A. Tan accept Medicare assignment?
- Yes. Medicare's clinician data says Angelica A. Tan 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 Angelica A. Tan see?
- In 2024, CMS data shows 253 Original Medicare patients and 2,886 services for Angelica A. Tan. This counts Original Medicare only and measures volume, not quality.
- What is Angelica A. Tan's NPI number?
- 1437860020. 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 Angelica A. Tan, 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 | 253 |
|---|---|
| Services billed to Medicare | 2,886 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 52 |
Most frequent services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)2,377 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)134 services
- Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage (90656)110 services
- Administration of influenza virus vaccine (G0008)110 services
- Advance care planning, first 30 minutes (99497)88 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%
- Anxiety61%
- Heart failure46%
- Depression40%
- Diabetes30%
Practice locations
Addresses where Angelica A. Tan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1605 Valle Del SolRedlands, CA 92373
- 414 Tennessee St, Suite XxRedlands, CA 92373 (909) 475‑7371
Group practices
Medicare enrollment lists Angelica A. Tan as a member of this group (CMS data updated October 2, 2026).
- Jun R. Chiong, MD, MPH, Inc.10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Redlands
Clinicians with the same Medicare primary specialty in Redlands, CA — not a recommendation.
Other clinicians in Jun R. Chiong, MD, MPH, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437860020 |
| 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