Quick answers
- Which hospitals does Premjit S. Chahal work at?
- Medicare's official clinician data lists Premjit S. Chahal at 3 hospitals: Contra Costa Regional Medical Center, John Muir Medical Center - Concord Campus and John Muir Medical Center - Walnut Creek Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Premjit S. Chahal see patients?
- Medicare's clinician data lists 2 practice locations, including Concord, CA and Brentwood, CA. Call before your visit to confirm the address.
- What is Premjit S. Chahal's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Premjit S. Chahal accept Medicare assignment?
- Medicare's clinician data says Premjit S. Chahal may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Premjit S. Chahal offer telehealth?
- Medicare's clinician data says Premjit S. Chahal offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Premjit S. Chahal?
- (925) 363-0069, as listed in official Medicare / NPI Registry data.
- What is Premjit S. Chahal's NPI number?
- 1093893091. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Premjit S. Chahal works
Medicare's Facility Affiliation Data lists Premjit S. Chahal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Contra Costa Regional Medical CenterMartinez, CA · Acute Care Hospital · CCN 050276
- 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
Practice locations
Addresses where Premjit S. Chahal is enrolled with Medicare (CMS data updated 2026-10-02).
- 2222 E St, Suite 340Concord, CA 94520 (925) 363‑0069
- 3291 Walnut Blvd, Suite 100Brentwood, CA 94513 (925) 363‑0069
Group practices
Medicare enrollment lists Premjit S. Chahal as a member of this group (CMS data updated 2026-10-02).
- Diablo Digestive Care Inc2 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Concord
Clinicians with the same Medicare primary specialty in Concord, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1093893091 |
| 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