Active NPI
Jenny F Jew, M.D.
- Gastroenterology Physician
- Concord, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- A110315
- Practice address
- 2222 East St Ste 300
Concord, CA 94520-2066 - Phone
- (925) 682-7730
- NPI assigned
- Jul 9, 2008
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | A110315 | CA | Primary |
Addresses
Primary practice location
2222 East St Ste 300
Concord, CA 94520-2066
Mailing address
3903 Lone Tree Way
Ste 205
Antioch, CA 94509-6249
Phone (925) 754-8710
Other names 1
- Jenny F Lai
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Boston University School of Medicine, 2008
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1505 Saint Alphonsus Way
Alamo, CA 94507-1570
Phone (925) 932-6330
2222 E St
Suite 300
Concord, CA 94520-2066
Phone (925) 932-6330
2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone (925) 378-4512
365 Lennon LN
Walnut Creek, CA 94598-5915
Hospital & facility affiliations
- John Muir Medical Center - Concord Campus
- John Muir Medical Center - Walnut Creek Campus
- Sutter Delta Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.98 of 100
- Quality
- 80.39
- Promoting interoperability
- 100
- Improvement activities
- 40
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 230 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 128 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 110315 | CA | MD | General Practice Dentistry |
| A110315 | CA | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Bass Medical Group | Current | Accepting new patients | |
| Bass Medical Group | Current | Accepting new patients | |
| Bass Medical Group | Current | Accepting new patients | |
| Brentwood Surgery Center, LLC | Past | Accepting new patients | |
| Dennis Zai, M.D., Inc | Gastroenterology | Past | Accepting new patients |
Locations
1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225
3903 Lone Tree Way
Ste 205
Antioch, CA 94509
Phone (925) 754-8710
4721 Dallas Ranch Rd
Antioch, CA 94531
Phone (925) 676-2600
2400 Balfour Rd
Ste 320
Brentwood, CA 94513
Phone (925) 240-2059
350 John Muir Pkwy
Ste 245
Brentwood, CA 94513
Phone (925) 240-2101
2540 East St
Concord, CA 94520
Phone (925) 674-2228
2222 East St
Ste 300
Concord, CA 94520
Phone (925) 676-2942
365 Lennon Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 627-3424
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- jjew33375@ehr.johnmuirhealth.com
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Obstetrics & Gynecology Physician
- Walnut Creek, CA
- NPI 1174253405
-
- Specialist
- Walnut Creek, CA
- NPI 1154401941
-
- Orthopaedic Surgery Physician
- San Ramon, CA
- NPI 1467329904
-
- Ambulatory Surgical Clinic/Center
- Brentwood, CA
- NPI 1982620522
-
- Gastroenterology Physician
- Antioch, CA
- NPI 1578659561
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Walnut Creek, CA
- NPI 1740215219
-
- General Acute Care Hospital
- Concord, CA
- NPI 1801821376
-
- General Acute Care Hospital
- Antioch, CA
- NPI 1467808659
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1215561600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787788800000",
"number": "1356504476",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3903 LONE TREE WAY",
"address_2": "STE 205",
"city": "ANTIOCH",
"state": "CA",
"postal_code": "945096249",
"telephone_number": "925-754-8710"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2222 EAST ST STE 300",
"city": "CONCORD",
"state": "CA",
"postal_code": "945202066",
"telephone_number": "925-682-7730"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JEW",
"first_name": "JENNY",
"middle_name": "F",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2008-07-09",
"last_updated": "2026-08-27",
"certification_date": "2026-08-27",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "CA",
"license": "A110315",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "JENNY",
"last_name": "LAI",
"middle_name": "F",
"credential": "M.D.",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Concord, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.