NPIMap

Organization Active NPI

On Site Health Services PC

  • Optometrist
  • Blue Bell, PA
National Provider Identifier
1720083553
Registry record updated Feb 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
OE006115T Issued in PA
Legal business name
ON SITE HEALTH SERVICES PC
Practice address
482 Norristown Rd
Suite 111
Blue Bell, PA 19422-2349
Phone
(610) 825-8210
Fax
(610) 825-8208
NPI assigned
Jun 17, 2005
Last updated
Feb 6, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Feb 6, 2026

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

Authorized official

Name
Gary Itzenson, O.DNPI 1508861311
Title
Owner Director Active, Attending
Phone
(610) 825-8210

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
OptometristGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 152W00000X 27OA00437400 NJ
OptometristGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 152W00000X OE006115T PA Primary

Addresses

Primary practice location

482 Norristown Rd
Suite 111
Blue Bell, PA 19422-2349

Mailing address

490 Norristown Rd Ste 151
Blue Bell, PA 19422-2350
Phone (610) 825-8210

Other identifiers 2

IdentifierTypeStateIssuer
100775693000MedicaidPA
2205211MedicaidNJ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA, NJ, DE3 enrollments

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
O20050304000260 PA Part B Supplier - Clinic/Group Practice 6406806462 Receives reassigned benefits from 8 practitioners
Practice locations: Blue Bell, PA
O20050415000564 NJ Part B Supplier - Clinic/Group Practice 6406806462 Receives reassigned benefits from 7 practitioners
Practice locations: Collingswood, NJ
O20220705002810 DE Part B Supplier - Clinic/Group Practice 6406806462 Receives reassigned benefits from 1 practitioner
Practice locations: Wilmington, DE

National Provider Directory

National Provider Directory

Locations

725 Cuthbert Blvd
Cherry Hill, NJ 08002

5 Powell Ln
Collingswood, NJ 08108

413 Germantown Pike
Ste 200
Lafayette Hl, PA 19444
Phone (610) 825-7980

Practitioners & affiliated clinicians

Practitioners 24

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 24

NPI Registry JSON

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

{
    "created_epoch": "1118966400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770336000000",
    "number": "1720083553",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "490 NORRISTOWN RD STE 151",
            "city": "BLUE BELL",
            "state": "PA",
            "postal_code": "194222350",
            "telephone_number": "610-825-8210",
            "fax_number": "610-825-8208"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "482 NORRISTOWN RD",
            "address_2": "SUITE 111",
            "city": "BLUE BELL",
            "state": "PA",
            "postal_code": "194222349",
            "telephone_number": "610-825-8210",
            "fax_number": "610-825-8208"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ON SITE HEALTH SERVICES PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2005-06-17",
        "last_updated": "2026-02-06",
        "certification_date": "2026-02-06",
        "status": "A",
        "authorized_official_last_name": "ITZENSON",
        "authorized_official_first_name": "GARY",
        "authorized_official_title_or_position": "OWNER DIRECTOR ACTIVE, ATTENDING",
        "authorized_official_telephone_number": "610-825-8210",
        "authorized_official_credential": "O.D"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Optometrist",
            "state": "NJ",
            "license": "27OA00437400",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Optometrist",
            "state": "PA",
            "license": "OE006115T",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100775693000",
            "state": "PA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2205211",
            "state": "NJ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Blue Bell, PA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.