Quick answers
- Does Thomas B. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas B. 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 Thomas B. Nguyen see?
- In 2024, CMS data shows 5,491 Original Medicare patients and 69,154 services for Thomas B. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Thomas B. Nguyen's NPI number?
- 1588828719. 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 Thomas B. 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 | 5,491 |
|---|---|
| Services billed to Medicare | 69,154 |
| Different services or procedures | 193 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)38,941 services
- Injection, gadobutrol, 0.1 ml (A9585)19,635 services
- Screening mammography (77067)1,697 services
- Screening 3d breast mammography (77063)1,692 services
- X-ray of chest, 2 views (71046)721 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 cholesterol67%
- High blood pressure58%
- Arthritis46%
- Osteoporosis25%
- Anxiety19%
- Depression18%
Hospitals where Thomas B. Nguyen works
Medicare's Facility Affiliation Data lists Thomas B. 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.
- Sutter Maternity & Surgery Center of Santa CruzSanta Cruz, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050714
Practice locations
Addresses where Thomas B. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 2025 Soquel AveSanta Cruez, CA 95062 (831) 423‑4111
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Thomas B. Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Select Rehabilitation, LLC2,046 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Santa Cruez
Clinicians with the same Medicare primary specialty in Santa Cruez, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
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 | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588828719 |
| 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