Quick answers
- Does Jeannie W. Chang accept Medicare assignment?
- Medicare's clinician data says Jeannie W. Chang may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Jeannie W. Chang see?
- In 2024, CMS data shows 20 Original Medicare patients and 120 services for Jeannie W. Chang. This counts Original Medicare only and measures volume, not quality.
- What is Jeannie W. Chang's NPI number?
- 1104055029. 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 Jeannie W. Chang, 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 | 20 |
|---|---|
| Services billed to Medicare | 120 |
| Different services or procedures | 2 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Evaluation of neuropsychological test, each additional hour (96133)100 services
- Evaluation of neuropsychological test, first hour (96132)20 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%
- Arthritis75%
- High cholesterol70%
Practice locations
Addresses where Jeannie W. Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 867 34th AveSan Francisco, CA 94121
- PO Box, Suite 3091Modesto, CA 95353
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1104055029 |
| 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