Active NPI
Yohan Ko, L.AC
- Acupuncturist
- Upland, CA
National Provider Identifier
1801149018
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Acupuncturist
- License
- AC13876
- Practice address
- 222 N Mountain Ave Ste 102a
Upland, CA 91786-5733 - Phone
- (909) 272-5819
- Fax
- (909) 550-1579
- NPI assigned
- Oct 25, 2012
- Sex
- Male
- Sole proprietor
- Yes
Organizations & group practices 3
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.
-
- Acupuncturist
- Upland, CA
- NPI 1275964744
-
- Physical Medicine & Rehabilitation Physician
- San Bernardino, CA
- NPI 1447343223
-
- Physical Medicine & Rehabilitation Physician
- West Covina, CA
- NPI 1821290024
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 |
|---|---|---|---|
| AC13876 | CA | MD | Acupuncturist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Yohan'S Clinic | Acupuncturist | Current | Accepting new patients |
| Precision Occupational Medical Group, Inc. | Past | Accepting new patients | |
| Cornerstone Medical Group, Inc. | Past | Accepting new patients |
Locations
1803 E Florence Ave
Los Angeles, CA 90001
222 N Mountain Ave
Ste 102A
Upland, CA 91786
Phone (909) 270-5819
Specialties & licenses 1
NPPES NPI Registry| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Acupuncturist | 171100000X | AC13876 | CA | Primary |
Addresses
NPPES NPI RegistryPrimary practice location
222 N Mountain Ave Ste 102a
Upland, CA 91786-5733
Mailing address
10650 Mountain View Ave Apt 201
Redlands, CA 92373-8434
Phone (909) 272-5819
Other identifiers 1
NPPES NPI Registry| Identifier | Type | State | Issuer |
|---|---|---|---|
| AC13876 | Other | CA | ACUPUNCTURE LICENSE |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Sep 11, 2026.
{
"created_epoch": "1351123200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789084800000",
"number": "1801149018",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10650 MOUNTAIN VIEW AVE APT 201",
"city": "REDLANDS",
"state": "CA",
"postal_code": "923738434",
"telephone_number": "909-272-5819",
"fax_number": "909-550-1579"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "222 N MOUNTAIN AVE STE 102A",
"city": "UPLAND",
"state": "CA",
"postal_code": "917865733",
"telephone_number": "909-272-5819",
"fax_number": "909-550-1579"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KO",
"first_name": "YOHAN",
"credential": "L.AC",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2012-10-25",
"last_updated": "2026-09-11",
"certification_date": "2026-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "171100000X",
"taxonomy_group": "",
"desc": "Acupuncturist",
"state": "CA",
"license": "AC13876",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "ACUPUNCTURE LICENSE",
"identifier": "AC13876",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Upland, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.