Julien Cyrill Atayan Belen, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

OPT36001 Issued in CA

Practice address

4150 Clement St
San Francisco, CA 94121-1563

Phone

(209) 337-5249

NPI assigned

Jul 3, 2025

Last updated

Jul 3, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1751500800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751500800000",
    "number": "1922998780",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10045 TAHOE WAY",
            "city": "STOCKTON",
            "state": "CA",
            "postal_code": "952093811",
            "telephone_number": "209-337-5249"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211563",
            "telephone_number": "209-337-5249"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BELEN",
        "first_name": "JULIEN CYRILL",
        "middle_name": "ATAYAN",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-07-03",
        "last_updated": "2025-07-03",
        "certification_date": "2025-07-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "OPT36001",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tattiana Belay
• Melissa C Belbahri, R.N. PHN
• Lynn Susan Belcher, L.AC.
• Denise M Belden, P.T.
• Ann Mary Belek, MD
• Roseanne Belen
• Sophia Beletsis
• Cindy Faye Belew, CNM NP
• Alice Belfor, RN
• Nataliya Belfor, PH.D.

• Optometrist in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Optometrist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.