ALLISIA WILLIAMSON OD
NPI 1821156845
Optometrist in Ewing, NJ
About Allisia Williamson Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISIA WILLIAMSON OD (NPI 1821156845) is an individual optometrist in Ewing, New Jersey, licensed in New Jersey (27OA00577300) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of Pennsylvania College Of Optometry (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Allisia Williamson Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Allisia Williamson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bordentown, NJ 08505
- Reassigned Medicare billing, New Jersey enrollment
- 2 clinicians in this Medicare group
Deptford, NJ 08096
- Reassigned Medicare billing, New Jersey enrollment
- 64 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08628 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Allisia Williamson's NPI number?
The NPI number for Allisia Williamson is 1821156845. It was assigned to this individual provider in the NPPES registry on December 4, 2006.
Where is Allisia Williamson located?
Allisia Williamson practices at 1400 Parkway Ave, Ewing, NJ 08628. The listed phone number is (609) 771-0845.
What is Allisia Williamson's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Allisia Williamson enrolled in Medicare?
Yes. Allisia Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Allisia Williamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allisia Williamson reassigns Medicare benefits to 2 organizations: Eye Care Center Of Bordentown, LLC (Bordentown, NJ) and Charles M. Cummins, Od, PA (Deptford, NJ). Each 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 Allisia Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allisia Williamson accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Oscar Health and Oscar Health Insurance and 6 other insurers list Allisia Williamson 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 Allisia Williamson was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Allisia Williamson, OD · NPI 1821156845
Optometrist provider in Ewing, New Jersey. Individual provider, active in the CMS NPPES registry since December 4, 2006.
## Identity
- **NPI:** 1821156845 (Entity type: Individual)
- **Enumerated:** December 4, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 27OA00577300 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 1400 PARKWAY AVE, Ewing, NJ 08628-3021
- **Phone:** (609) 771-0845 · **Fax:** (609) 771-0845
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Eye Care Center Of Bordentown, LLC (NPI 1811230857, Bordentown, NJ); Charles M. Cummins, Od, PA (NPI 1205177508, Deptford, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania College Of Optometry, class of 2001
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Medicare ID-Type Unspecified 052183CQT (NJ); Medicare UPIN U87585 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1821156845) · Data from the CMS NPPES public registry.