Active NPI
Michael Lewis, MD
- Family Medicine Physician
- Concord, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- G64666
- Practice address
- 2001 Diamond Blvd Ste C-100
Concord, CA 94520-5737 - Phone
- (888) 663-6331
- Fax
- (415) 252-7176
- NPI assigned
- Jun 7, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | G64666 | CA | |
| Family Medicine Physician | 207Q00000X | G64666 | CA | Primary |
Addresses
Primary practice location
2001 Diamond Blvd Ste C-100
Concord, CA 94520-5737
Mailing address
130 Sutter St FL 2
San Francisco, CA 94104-4009
Phone (415) 658-6791
Other practice location 1
1333 Powell St
Suite 103
Emeryville, CA 94608-2598
Phone (510) 225-1000
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
- Family Practice
- Education
- Northeastern Ohio University College of Medicine, 1987
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1333 Powell St
Suite A103
Emeryville, CA 94608-2598
Phone (510) 225-1000
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G64666 | CA | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| One Medical Group, Inc | Family Medicine | Current | Accepting new patients |
| One Medical Group, Inc. | Family Medicine | Current | Accepting new patients |
Locations
2001 Diamond Blvd
Ste C100
Concord, CA 94520
1333 Powell St
Ste A103
Emeryville, CA 94608
Phone (510) 225-1000
1955 Broadway
Ste A
Oakland, CA 94612
559 Clay St
#200
San Francisco, CA 94111
Phone (415) 830-4744
130 Sutter St
Fl 2
San Francisco, CA 94104
Phone (415) 529-4522
110 Sutter St
Fl 6
San Francisco, CA 94104
Phone (415) 392-8200
1 Embarcadero Ctr
Ste 1900
San Francisco, CA 94111
2950 S Delaware St
Ste 150
San Mateo, CA 94403
1004 Northgate Dr
San Rafael, CA 94903
Phone (415) 590-6150
1299 Oakmead Pkwy
Sunnyvale, CA 94085
Phone (408) 266-3100
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- michael.lewis.1@5074.direct.athenahealth.com
Organizations & group practices 2
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.
-
- Family Medicine Physician
- San Francisco, CA
- NPI 1467781641
-
- Family Medicine Physician
- Tigard, OR
- NPI 1891521134
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149638400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1742169600000",
"number": "1700826740",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "130 SUTTER ST FL 2",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941044009",
"telephone_number": "415-658-6791",
"fax_number": "415-520-0904"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2001 DIAMOND BLVD STE C-100",
"city": "CONCORD",
"state": "CA",
"postal_code": "945205737",
"telephone_number": "888-663-6331",
"fax_number": "415-252-7176"
}
],
"practiceLocations": [
{
"address_1": "1333 Powell St",
"address_2": "Suite 103",
"address_purpose": "LOCATION",
"city": "Emeryville",
"state": "CA",
"postal_code": "946082598",
"country_code": "US",
"telephone_number": "510-225-1000",
"fax_number": "510-225-1019",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LEWIS",
"first_name": "MICHAEL",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-07",
"last_updated": "2025-03-17",
"certification_date": "2025-03-17",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CA",
"license": "G64666",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "CA",
"license": "G64666",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
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 Mar 17, 2025; 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.