ON SITE HEALTH SERVICES PC
NPI 1720083553
Optometrist in Blue Bell, PA

Q: What is On Site Health Services PC's NPI number?

The NPI number for On Site Health Services PC is 1720083553. It was assigned to this organization in the NPPES registry on June 17, 2005.

Q: What is On Site Health Services PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Active since June 17, 2005

482 NORRISTOWN RD, SUITE 111, BLUE BELL, PA 19422(610) 825-8210(610) 825-8208 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 6, 2026, Jun 16, 2021 (2 updates tracked since 2021).

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About On Site Health Services Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ON SITE HEALTH SERVICES PC (NPI 1720083553) is a healthcare organization registered as an optometrist in Blue Bell, Pennsylvania and active in the NPI registry since June 2005. The organization lists Gary Itzenson, Owner Director Active, Attending, as its authorized official.

NPPES Registry Identity

NPI1720083553

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameON SITE HEALTH SERVICES PC

Location Address482 NORRISTOWN RD, SUITE 111Blue Bell, PA 19422-2349

Mailing Address490 Norristown Rd Ste 151Blue Bell, PA 19422-2350 · (610) 825-8210 · Fax (610) 825-8208

Phone(610) 825-8210

Fax(610) 825-8208

Organization SubpartNo

Authorized OfficialGary ItzensonOwner Director Active, Attending · (610) 825-8210

Enumeration DateJune 17, 2005

Last NPPES UpdateFebruary 6, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 6, 2026

✔ NPI 1720083553 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

Licenses✔ Licensed in PA · OE006115T✔ Licensed in NJ · 27OA00437400

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

482 NORRISTOWN RD, Blue Bell, PA 19422

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Other Identifiers 2

Medicaid100775693000PA

Medicaid2205211NJ

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming, Highmark Blue Cross Blue Shield Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

On Site Health Services Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 8 clinicians reassign Medicare billing to On Site Health Services PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Sara Arnold

Optometry

NPI 1245896802

482 NORRISTOWN RD
Blue Bell, PA 19422

(610) 825-8210

✔ PECOS✔ Accepts MedicareSame address

Sahar Pourshahriari, OD

Optometry

NPI 1730442435

482 NORRISTOWN RD SUITE 111
Blue Bell, PA 19422

(610) 956-0003

✔ PECOS✔ Accepts MedicareSame address

Tammra Banner, OD

Optometry

NPI 1417912072

413 GERMANTOWN PIKE SUITE 200
Lafayette Hill, PA 19444

(610) 825-7980

✔ PECOS✔ Accepts Medicare2.7 mi

Karen French, O.D.

Optometry

NPI 1912902727

413 GERMANTOWN PIKE STE 200
Lafayette Hill, PA 19444

(610) 825-8210

✔ PECOS✔ Accepts Medicare2.7 mi

Jessica Haney, O.D.

Optometry

NPI 1497751754

413 GERMANTOWN PIKE STE 200
Lafayette Hill, PA 19444

(610) 825-8210

✔ PECOS✔ Accepts Medicare2.7 mi

Gary Itzenson, O.D.

Optometry

NPI 1508861311

413 GERMANTOWN PIKE STE 200
Lafayette Hill, PA 19444

(610) 825-8210

✔ PECOS2.7 mi

Sarah Kulich, O.D.

Optometry

NPI 1942565759

1098 WASHINGTON CROSSING RD SUITE 5
Washington Crossing, PA 18977

(215) 493-0404

✔ PECOS✔ Accepts Medicare24 mi

Daniel Toocheck, O.D.

Optometry

NPI 1528284346

1781 LENAPE RD
West Chester, PA 19382

(484) 354-2835

✔ PECOS✔ Accepts Medicare26 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is On Site Health Services PC's NPI number?

The NPI number for On Site Health Services PC is 1720083553. It was assigned to this organization in the NPPES registry on June 17, 2005.

Where is On Site Health Services PC located?

On Site Health Services PC is located at 482 Norristown Rd Suite 111, Blue Bell, PA 19422. The listed phone number is (610) 825-8210.

What is On Site Health Services PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is On Site Health Services PC enrolled in Medicare?

Yes. On Site Health Services PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through On Site Health Services PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians, all in Optometry, reassign their Medicare billing to On Site Health Services PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does On Site Health Services PC accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Highmark Blue Cross Blue Shield Delaware and Highmark Blue Cross Blue Shield West Virginia list On Site Health Services PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for On Site Health Services PC was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.