Quick answers
- Does Betty L. Hsia accept Medicare assignment?
- Yes. Medicare's clinician data says Betty L. Hsia 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 Betty L. Hsia see?
- In 2024, CMS data shows 11 Original Medicare patients and 18 services for Betty L. Hsia. This counts Original Medicare only and measures volume, not quality.
- What is Betty L. Hsia's NPI number?
- 1871588137. 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 Betty L. Hsia, 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 | 11 |
|---|---|
| Services billed to Medicare | 18 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Practice locations
Addresses where Betty L. Hsia is enrolled with Medicare (CMS data updated October 2, 2026).
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 450 W Hwy 22, NeonatologyBarrington, IL 60010 (847) 381‑0123
Group practices
Medicare enrollment lists Betty L. Hsia as a member of this group (CMS data updated October 2, 2026).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Buffalo Grove
Clinicians with the same Medicare primary specialty in Buffalo Grove, IL — not a recommendation.
Other clinicians in Advocate Health and Hospitals Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871588137 |
| 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