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DR. MARGARET JOHNSTON O.D.
NPI 1164442653
Optometrist - Corneal and Contact Management in Alexandria, VA

Active since July 20, 2006PECOS Enrolled
113 NORTH WASHINGTON ST, ALEXANDRIA, VA 22314(703) 549-5454 Get Directions Write a Review

NPPES record last updated: June 19, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Margaret Johnston O.d. NPPES

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

DR. MARGARET JOHNSTON O.D. (NPI 1164442653) is an individual corneal and contact management provider in Alexandria, Virginia, licensed in Virginia (0618000176) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164442653
Entity TypeIndividualFemale
Primary Taxonomy152WC0802X
Provider Legal NameDR. MARGARET JOHNSTONCredential: O.D.
Location Address113 NORTH WASHINGTON STAlexandria, VA 22314
Mailing Address7405 Old Dominion DrMclean, VA 22101-2723 · (703) 448-0923 · Fax (703) 448-8639
Phone(703) 549-5454
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateJune 19, 2014
✔ NPI 1164442653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometrist · Corneal and Contact ManagementEye and Vision Services Providers
Taxonomy Code152WC0802X
License✔ Licensed in VA · 0618000176
Definition
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.
113 NORTH WASHINGTON ST, Alexandria, VA 22314
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Other Names 1

Former Name (1)Dr. Margaret A. Placentra O.d.

Other Identifiers 2

Medicare ID-Type UnspecifiedJ412603VA · Medicare Number
Medicare UPINT31174VA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Margaret Johnston O.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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22314 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

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 Margaret Johnston's NPI number?

The NPI number for Margaret Johnston is 1164442653. It was assigned to this individual provider in the NPPES registry on July 20, 2006. The provider is also known as Dr. Margaret A. Placentra O.D..

Where is Margaret Johnston located?

Margaret Johnston practices at 113 North Washington St, Alexandria, VA 22314. The listed phone number is (703) 549-5454.

What is Margaret Johnston's specialty?

The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.

Is Margaret Johnston enrolled in Medicare?

Yes. Margaret Johnston is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Margaret Johnston was last updated on June 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.