Quick answers
- Does Chung-Ih J. Chou accept Medicare assignment?
- Yes. Medicare's clinician data says Chung-Ih J. Chou 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 Chung-Ih J. Chou see?
- In 2024, CMS data shows 433 Original Medicare patients and 457 services for Chung-Ih J. Chou. This counts Original Medicare only and measures volume, not quality.
- What is Chung-Ih J. Chou's NPI number?
- 1962411306. 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 Chung-Ih J. Chou, 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 | 433 |
|---|---|
| Services billed to Medicare | 457 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Anesthesia for lens surgery (00142)257 services
- Anesthesia for other procedure on eye (00140)42 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)24 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)18 services
- Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back (00300)11 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 cholesterol73%
- High blood pressure66%
- Arthritis37%
- Diabetes26%
- Ischemic heart disease20%
- Chronic kidney disease20%
Hospitals where Chung-Ih J. Chou works
Medicare's Facility Affiliation Data lists Chung-Ih J. Chou 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.
- Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197
Practice locations
Addresses where Chung-Ih J. Chou is enrolled with Medicare (CMS data updated October 2, 2026).
- 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020
Group practices
Medicare enrollment lists Chung-Ih J. Chou as a member of this group (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Palo Alto
Clinicians with the same Medicare primary specialty in Palo Alto, 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 |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962411306 |
| 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