Active NPI
Yoshio - Nakashima, DDS
- General Practice Dentistry
- San Francisco, CA
National Provider Identifier
1669475653
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Dentistry
- License
- 16017
- Practice address
- 3400 California St
Ste 302
San Francisco, CA 94118-1863 - Phone
- (415) 567-1532
- Fax
- (415) 567-2052
- NPI assigned
- May 23, 2005
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| General Practice Dentistry | 1223G0001X | 16017 | CA | Primary |
Addresses
Primary practice location
3400 California St
Ste 302
San Francisco, CA 94118-1863
Mailing address
3400 California St
Ste 302
San Francisco, CA 94118-1863
Phone (415) 567-1532
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 16017 | CA | MD | Certified Respiratory Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Nancy Kwon Hsieh, DDS, Inc | General Practice | Past | Accepting new patients |
Organizations & group practices 1
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.
-
- General Practice Dentistry
- San Francisco, CA
- NPI 1609088624
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1116806400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1669475653",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3400 CALIFORNIA ST",
"address_2": "STE 302",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941181863",
"telephone_number": "415-567-1532",
"fax_number": "415-567-2052"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3400 CALIFORNIA ST",
"address_2": "STE 302",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941181863",
"telephone_number": "415-567-1532",
"fax_number": "415-567-2052"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NAKASHIMA",
"first_name": "YOSHIO",
"middle_name": "-",
"credential": "DDS",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-05-23",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "1223G0001X",
"taxonomy_group": "",
"desc": "Dentist, General Practice",
"state": "CA",
"license": "16017",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in San Francisco, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.