Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CASSANDRA LYNNE MARK OD
NPI 1487182010
Optometrist in Newton, MA

Q: What is Cassandra Mark's NPI number?

The NPI number for Cassandra Mark is 1487182010. It was assigned to this individual provider in the NPPES registry on May 26, 2017.

Q: What is Cassandra Mark's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Cassandra Mark was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.

Active since May 26, 2017PECOS Enrolled

42 LANGLEY RD, NEWTON, MA 02459(617) 431-5747(617) 431-5747 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 20, 2026, Oct 31, 2018, Jul 13, 2017 and 1 more (4 updates tracked since 2017).

On this page

About Dr. Cassandra Lynne Mark Od NPPES

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

DR. CASSANDRA LYNNE MARK OD (NPI 1487182010) is an individual optometrist in Newton, Massachusetts, licensed in Massachusetts (5229) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS and is a graduate of New England College Of Optometry (2017).

NPPES Registry Identity

NPI1487182010

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDR. CASSANDRA LYNNE MARKCredential: OD

Location Address42 LANGLEY RDNewton, MA 02459-1918

Mailing Address42 Langley RdNewton, MA 02459-1918 · (617) 431-5747 · Fax (617) 431-5747

Phone(617) 431-5747

Fax(617) 431-5747

Sole ProprietorYes

Medical School CMSNew England College Of OptometryGraduated 2017

Enumeration DateMay 26, 2017

Last NPPES UpdateJuly 20, 20264 updates tracked since enumeration

NPPES CertifiedJuly 20, 2026

✔ NPI 1487182010 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in MA · 5229

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

42 LANGLEY RD, Newton, MA 02459

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Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Cassandra Lynne Mark 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.

PECOS PAC ID6608142211

PECOS Enrollment IDI20200414000216

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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

25 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02459 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

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.

CASSIE MARK LLC

Optometrist

42 LANGLEY RD
NEWTON, MA 02459

Middlesex County (617) 869-8464

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 Cassandra Mark's NPI number?

The NPI number for Cassandra Mark is 1487182010. It was assigned to this individual provider in the NPPES registry on May 26, 2017.

Where is Cassandra Mark located?

Cassandra Mark practices at 42 Langley Rd, Newton, MA 02459. The listed phone number is (617) 431-5747.

What is Cassandra Mark's specialty?

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

Is Cassandra Mark enrolled in Medicare?

Yes. Cassandra Mark 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.

What insurance does Cassandra Mark accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Cassandra Mark 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 Cassandra Mark was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.