Quick answers
- Does Catherine M. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine M. Nguyen 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 Catherine M. Nguyen see?
- In 2024, CMS data shows 1,280 Original Medicare patients and 3,453 services for Catherine M. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Catherine M. Nguyen's NPI number?
- 1215230784. 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 Catherine M. Nguyen, 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 | 1,280 |
|---|---|
| Services billed to Medicare | 3,453 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)1,190 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)568 services
- Cell examination of specimen, selective cellular enhancement technique (88112)248 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)207 services
- Special stained specimen slides to examine tissue, initial procedure (88342)202 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%
- High blood pressure68%
- Arthritis51%
- Ischemic heart disease28%
- Chronic kidney disease26%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%
Hospitals where Catherine M. Nguyen works
Medicare's Facility Affiliation Data lists Catherine M. Nguyen 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.
- Scripps Green HospitalLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050424
- Scripps Memorial Hospital - EncinitasEncinitas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050503
- Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050324
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050077
Practice locations
Addresses where Catherine M. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 10666 N Torrey Pines Rd, 2nd Floor SW209La Jolla, CA 92037 (858) 554‑8122
Group practices
Medicare enrollment lists Catherine M. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Scripps Health1,433 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in La Jolla
Clinicians with the same Medicare primary specialty in La Jolla, CA — not a recommendation.
Other clinicians in Scripps Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215230784 |
| 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