Quick answers
- Does Gordon W. Wong accept Medicare assignment?
- Yes. Medicare's clinician data says Gordon W. Wong 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 Gordon W. Wong see?
- In 2024, CMS data shows 231 Original Medicare patients and 2,253 services for Gordon W. Wong. This counts Original Medicare only and measures volume, not quality.
- What is Gordon W. Wong's NPI number?
- 1235172446. 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 Gordon W. Wong, 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 | 231 |
|---|---|
| Services billed to Medicare | 2,253 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)608 services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)245 services
- Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)222 services
- Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (G6012)123 services
- Calculation of radiation therapy dose (77300)108 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High blood pressure73%
- Arthritis34%
- Diabetes30%
- Chronic kidney disease27%
Hospitals where Gordon W. Wong works
Medicare's Facility Affiliation Data lists Gordon W. Wong 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.
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
Practice locations
Addresses where Gordon W. Wong is enrolled with Medicare (CMS data updated October 2, 2026).
- 1480 64th St, Suite 100Emeryville, CA 94608 (510) 629‑6682
- 15400 National Ave, Suite 100Los Gatos, CA 95032 (831) 375‑4105
- 27204 Calaroga AveHayward, CA 94545 (510) 264‑0300
- 505 Parnassus AveSan Francisco, CA 94143 (415) 476‑1000
Group practices
Medicare enrollment lists Gordon W. Wong as a member of these groups (CMS data updated October 2, 2026).
- Regents of the University of California - UCSF80 clinicians in the group
- Epic Care55 clinicians in the group
- Monterey Bay Oncology a Medical Corporation16 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Regents of the University of California - UCSF
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235172446 |
| 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