Quick answers
- Does Andrea L. Ong accept Medicare assignment?
- Yes. Medicare's clinician data says Andrea L. Ong 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 Andrea L. Ong see?
- In 2024, CMS data shows 1,323 Original Medicare patients and 3,037 services for Andrea L. Ong. This counts Original Medicare only and measures volume, not quality.
- What is Andrea L. Ong's NPI number?
- 1902826472. 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 Andrea L. Ong, 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 | 1,323 |
|---|---|
| Services billed to Medicare | 3,037 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)1,110 services
- Cell examination of specimen, selective cellular enhancement technique (88112)484 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)242 services
- Special stained specimen slides to examine tissue, initial procedure (88342)190 services
- Evaluation of fine needle aspirate with interpretation and report (88173)168 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 cholesterol72%
- High blood pressure71%
- Arthritis49%
- Chronic kidney disease29%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)29%
- Diabetes28%
Hospitals where Andrea L. Ong works
Medicare's Facility Affiliation Data lists Andrea L. Ong 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.
- Sutter Auburn Faith HospitalAuburn, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050498
- Sutter Davis HospitalDavis, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050537
- Sutter Medical Center, SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050108
- Sutter Roseville Medical CenterRoseville, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050309
- Sutter Solano Medical CenterVallejo, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050101
Practice locations
Addresses where Andrea L. Ong is enrolled with Medicare (CMS data updated October 2, 2026).
- 11815 Education StAuburn, CA 95602 (530) 447‑6267
- 2000 Sutter PlDavis, CA 95616 (916) 447‑6267
- 2825 Capitol AveSacramento, CA 95816 (916) 447‑6267
- 300 Hospital DrVallejo, CA 94589 (916) 447‑6267
- 3301 C StSacramento, CA 95816 (916) 446‑0424
Group practices
Medicare enrollment lists Andrea L. Ong as a member of this group (CMS data updated October 2, 2026).
- Diagnostic Pathology Medical Group Inc31 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Auburn
Clinicians with the same Medicare primary specialty in Auburn, CA — not a recommendation.
Other clinicians in Diagnostic Pathology Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Massachusetts Medical School |
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902826472 |
| 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