Active NPI
Seymour Besem, O.D.
- Occupational Vision Optometrist
- Los Angeles, CA
National Provider Identifier
1275626228
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Occupational Vision Optometrist
- License
- 5817TPL
- Practice address
- 998 S Robertson Blvd
#204
Los Angeles, CA 90035-1637 - Phone
- (310) 659-4644
- NPI assigned
- Oct 2, 2006
- Last updated
- Sep 11, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 7
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Optometrist | 152W00000X | 5817TPL | CA | |
| Corneal and Contact Management Optometrist | 152WC0802X | 5817TPL | CA | |
| Low Vision Rehabilitation Optometrist | 152WL0500X | 5817TPL | CA | |
| Pediatric Optometrist | 152WP0200X | 5817TPL | CA | |
| Sports Vision Optometrist | 152WS0006X | 5817TPL | CA | |
| Vision Therapy Optometrist | 152WV0400X | 5817TPL | CA | |
| Occupational Vision Optometrist | 152WX0102X | 5817TPL | CA | Primary |
Addresses
Primary practice location
998 S Robertson Blvd
#204
Los Angeles, CA 90035-1637
Mailing address
998 S Robertson Blvd
#204
Los Angeles, CA 90035-1637
Phone (310) 659-4644
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| SD0058170 | Medicaid | CA | |
| 5817TPL | Other | CA | LINCENSE NUMBER |
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)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5817TPL | CA | MD | Low Vision Rehabilitation Optometrist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1159747200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1275626228",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "998 S ROBERTSON BLVD",
"address_2": "#204",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900351637",
"telephone_number": "310-659-4644"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "998 S ROBERTSON BLVD",
"address_2": "#204",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900351637",
"telephone_number": "310-659-4644"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BESEM",
"first_name": "SEYMOUR",
"name_prefix": "Dr.",
"credential": "O.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-10-02",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "152W00000X",
"taxonomy_group": "",
"desc": "Optometrist",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WC0802X",
"taxonomy_group": "",
"desc": "Optometrist, Corneal and Contact Management",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WL0500X",
"taxonomy_group": "",
"desc": "Optometrist, Low Vision Rehabilitation",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WP0200X",
"taxonomy_group": "",
"desc": "Optometrist, Pediatrics",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WS0006X",
"taxonomy_group": "",
"desc": "Optometrist, Sports Vision",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WV0400X",
"taxonomy_group": "",
"desc": "Optometrist, Vision Therapy",
"state": "CA",
"license": "5817TPL",
"primary": false
},
{
"code": "152WX0102X",
"taxonomy_group": "",
"desc": "Optometrist, Occupational Vision",
"state": "CA",
"license": "5817TPL",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "SD0058170",
"state": "CA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LINCENSE NUMBER",
"identifier": "5817TPL",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Los Angeles, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.