Quick answers
- Does Rebecca Cao accept Medicare assignment?
- Yes. Medicare's clinician data says Rebecca Cao 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 Rebecca Cao see?
- In 2024, CMS data shows 338 Original Medicare patients and 566 services for Rebecca Cao. This counts Original Medicare only and measures volume, not quality.
- What is Rebecca Cao's NPI number?
- 1558041327. 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 Rebecca Cao, 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 | 338 |
|---|---|
| Services billed to Medicare | 566 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)384 services
- Urinalysis, manual test (81002)37 services
- Removal of impacted ear wax (69210)28 services
- Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)28 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)15 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 pressure62%
- High cholesterol62%
- Arthritis39%
- Ischemic heart disease24%
- Osteoporosis24%
- Anxiety22%
Hospitals where Rebecca Cao works
Medicare's Facility Affiliation Data lists Rebecca Cao at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Berkshire Medical CenterPittsfield, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220046
- Fairview HospitalGreat Barrington, MA · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 221302
- North Adams Regional Hospital CorporationNorth Adams, MA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 221304
Practice locations
Addresses where Rebecca Cao is enrolled with Medicare (CMS data updated October 2, 2026).
- 710 Stockbridge RdLee, MA 01238 (413) 243‑0122
Group practices
Medicare enrollment lists Rebecca Cao as a member of this group (CMS data updated October 2, 2026).
- Suburban Internal Medicine, Inc.14 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lee
Clinicians with the same Medicare primary specialty in Lee, MA — not a recommendation.
Other clinicians in Suburban Internal Medicine, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558041327 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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