Quick answers
- Which hospitals does Sam Chitsaz Avval work at?
- Medicare's official clinician data lists Sam Chitsaz Avval at 4 hospitals: Alta Bates Summit Medical Center, John Muir Medical Center - Concord Campus, John Muir Medical Center - Walnut Creek Campus and Sutter Delta Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sam Chitsaz Avval see patients?
- Medicare's clinician data lists 9 practice locations, including Castro Valley, CA, Pittsburg, CA and Brentwood, CA. Call before your visit to confirm the address.
- What is Sam Chitsaz Avval's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Sam Chitsaz Avval accept Medicare assignment?
- Yes. Medicare's clinician data says Sam Chitsaz Avval accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Sam Chitsaz Avval offer telehealth?
- Medicare's clinician data says Sam Chitsaz Avval offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Sam Chitsaz Avval?
- (925) 432-3318, as listed in official Medicare / NPI Registry data.
- What is Sam Chitsaz Avval's NPI number?
- 1821364084. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sam Chitsaz Avval works
Medicare's Facility Affiliation Data lists Sam Chitsaz Avval at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · CCN 050523
Practice locations
Addresses where Sam Chitsaz Avval is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 20130 Lake Chabot RdCastro Valley, CA 94546
- 2220 Gladstone Dr, Suite 3Pittsburg, CA 94565 (925) 432‑3318
- 2400 Balfour Rd, Suite 306Brentwood, CA 94513 (925) 432‑3318
- 3200 Kearney StFremont, CA 94538 (510) 490‑1222
- 350 Hawthorne AveOakland, CA 94609
Group practices
Medicare enrollment lists Sam Chitsaz Avval as a member of these groups (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Pittsburg-Antioch Medical Group a Professional Corporation14 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821364084 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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