Quick answers
- Does Haiwei H. Guo accept Medicare assignment?
- Yes. Medicare's clinician data says Haiwei H. Guo 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 Haiwei H. Guo see?
- In 2024, CMS data shows 4,593 Original Medicare patients and 8,304 services for Haiwei H. Guo. This counts Original Medicare only and measures volume, not quality.
- What is Haiwei H. Guo's NPI number?
- 1578750758. 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 Haiwei H. Guo, 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 | 4,593 |
|---|---|
| Services billed to Medicare | 8,304 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)4,979 services
- X-ray of chest, 2 views (71046)1,335 services
- Ct scan of chest without contrast (71250)837 services
- Ct scan of chest with contrast (71260)355 services
- X-ray of abdomen, 1 view (74018)165 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 pressure75%
- High cholesterol75%
- Ischemic heart disease44%
- Arthritis41%
- Chronic kidney disease41%
- Diabetes38%
Hospitals where Haiwei H. Guo works
Medicare's Facility Affiliation Data lists Haiwei H. Guo 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.
- Dominican HospitalSanta Cruz, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050242
- El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
- Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038
- Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050283
Practice locations
Addresses where Haiwei H. Guo is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 420 Broadway StRedwood City, CA 94063 (650) 723‑4000
- 450 Broadway StRedwood City, CA 94063 (650) 723‑4000
- 5555 W Las Positas BlvdPleasanton, CA 94588 (925) 847‑3000
Group practices
Medicare enrollment lists Haiwei H. Guo as a member of this group (CMS data updated October 2, 2026).
- Stanford Health Care3,122 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Nuclear Medicinealso
Other radiologists in Redwood City
Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.
Other clinicians in Stanford Health Care
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578750758 |
| 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