Quick answers
- Does Richard P. Chao accept Medicare assignment?
- Yes. Medicare's clinician data says Richard P. Chao 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 Richard P. Chao see?
- In 2024, CMS data shows 2,652 Original Medicare patients and 20,310 services for Richard P. Chao. This counts Original Medicare only and measures volume, not quality.
- What is Richard P. Chao's NPI number?
- 1134150071. 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 Richard P. Chao, 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 | 2,652 |
|---|---|
| Services billed to Medicare | 20,310 |
| Different services or procedures | 139 |
| 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)13,878 services
- Injection, gadobutrol, 0.1 ml (A9585)1,034 services
- Dxa bone density measurement of hip, pelvis, spine (77080)478 services
- X-ray of chest, 2 views (71046)407 services
- Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries (A9552)305 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%
- Arthritis55%
- Diabetes48%
- Chronic kidney disease42%
- Osteoporosis41%
Practice locations
Addresses where Richard P. Chao is enrolled with Medicare (CMS data updated October 2, 2026).
- 707 S Garfield Ave, Suite B001Alhambra, CA 91801 (626) 227‑2727
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Alhambra
Clinicians with the same Medicare primary specialty in Alhambra, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134150071 |
| 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
- 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