MARK W BEYER LLC
NPI 1336597871
Ophthalmology in Mercerville, NJ
About Mark W Beyer Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK W BEYER LLC (NPI 1336597871) is a healthcare organization registered as an ophthalmology in Mercerville, New Jersey and active in the NPI registry since May 2016. The organization lists Mark W Beyer, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark W Beyer Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Mark W Beyer LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
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 Mark W Beyer LLC's NPI number?
The NPI number for Mark W Beyer LLC is 1336597871. It was assigned to this organization in the NPPES registry on May 25, 2016.
Where is Mark W Beyer LLC located?
Mark W Beyer LLC is located at 395 Highway 33, Mercerville, NJ 08619. The listed phone number is (609) 981-7183.
What is Mark W Beyer LLC's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Mark W Beyer LLC enrolled in Medicare?
Yes. Mark W Beyer LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark W Beyer LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Mark W Beyer LLC, in Ophthalmology and Optometry. 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, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mark W Beyer LLC was last updated on May 25, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Mark W Beyer Llc · NPI 1336597871
Ophthalmology organization in Mercerville, New Jersey. Organization record, active in the CMS NPPES registry since May 25, 2016.
## Identity
- **NPI:** 1336597871 (Entity type: Organization)
- **Enumerated:** May 25, 2016
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** Mark Beyer, OWNER
## Practice location
- **Address:** 395 HIGHWAY 33, Mercerville, NJ 08619-4401
- **Phone:** (609) 981-7183
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Ophthalmology (1), Optometry (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 25, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1336597871) · Data from the CMS NPPES public registry.