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DR. WILLIAM PARKER MARKS JR. M.D.
NPI 1356337448
Ophthalmology in Canton, GA

Active since September 23, 2005PECOS Enrolled
125 OAKSIDE CT, SUITE 102, CANTON, GA 30114(678) 880-0662(678) 880-0675 Get Directions Write a Review

NPPES record last updated: July 14, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. William Parker Marks Jr. M.d. NPPES

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

DR. WILLIAM PARKER MARKS JR. M.D. (NPI 1356337448) is an individual ophthalmology provider in Canton, Georgia, licensed in Georgia (030829) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356337448
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. WILLIAM PARKER MARKS JR.Credential: M.D.
Location Address125 OAKSIDE CT, SUITE 102Canton, GA 30114-2498
Mailing Address125 Oakside Ct, Suite 102Canton, GA 30114-2498 · (678) 880-0662 · Fax (678) 880-0675
Phone(678) 880-0662
Fax(678) 880-0675
Sole ProprietorYes
Enumeration DateSeptember 23, 2005
Last NPPES UpdateJuly 14, 2010
✔ NPI 1356337448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in GA · 030829
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
125 OAKSIDE CT, Canton, GA 30114
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Other Identifiers 3

Medicare UPINE84469GA
Medicaid000575858JGA
Medicare ID-Type Unspecified18BDGDFGA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Parker Marks Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show William Marks reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Jonathan Woolfson, MD, PC
0.2 mi
Ophthalmology
201 HOSPITAL RD
Canton, GA 30114
  • Reassigned Medicare billing, Georgia enrollment
  • 34 clinicians in this Medicare group
NPI 1942511050 (770) 720-5100

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 30114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.64 typical visit price
range $56.84 – $172.43
Typical copayment $32.66 (range $14.21 – $43.10)
Most-billed visit code 99204
Established Patient
$70.85 typical visit price
range $18.22 – $140.40
Typical copayment $17.71 (range $4.55 – $35.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ETOWAH EYE CLINIC, P.C.
Ophthalmology
125 OAKSIDE CT, SUITE 102
CANTON, GA 30114
Cherokee County (678) 880-0662

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 William Marks's NPI number?

The NPI number for William Marks is 1356337448. It was assigned to this individual provider in the NPPES registry on September 23, 2005.

Where is William Marks located?

William Marks practices at 125 Oakside Ct Suite 102, Canton, GA 30114. The listed phone number is (678) 880-0662.

What is William Marks's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William Marks enrolled in Medicare?

Yes. William Marks is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Marks's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Marks reassigns Medicare benefits to Jonathan Woolfson, MD, PC (Canton, GA). The 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 William Marks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Marks was last updated on July 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.