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PEC CHESTERFIELD, LLC
NPI 1811500069
Optometrist in Ellisville, MO

Active since August 27, 2020
317 CLARKSON RD STE 102, ELLISVILLE, MO 63011(636) 725-2020 Get Directions Write a Review

NPPES record last updated: August 27, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Pec Chesterfield, Llc NPPES

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

PEC CHESTERFIELD, LLC (NPI 1811500069) is a healthcare organization registered as an optometrist in Ellisville, Missouri and active in the NPI registry since August 2020. The organization lists Dirk Massie, Owner, as its authorized official.

NPPES Registry Identity

NPI1811500069
Entity TypeOrganization
Primary Taxonomy152W00000X
Legal Business NamePEC CHESTERFIELD, LLC
Location Address317 CLARKSON RD STE 102Ellisville, MO 63011-2271
Mailing Address4111 N Illinois StSwansea, IL 62226-7609 · (618) 234-3053
Phone(636) 725-2020
Organization SubpartNo
Authorized OfficialDirk MassieOwner · (618) 234-3053
Enumeration DateAugust 27, 2020
NPPES CertifiedAugust 26, 2020
✔ NPI 1811500069 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
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.
317 CLARKSON RD STE 102, Ellisville, MO 63011
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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 Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Pec Chesterfield, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Pec Chesterfield, LLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Thomas Cunningham, OD
Optometry
NPI 1053427104
92 CHESTERFIELD MALL
Chesterfield, MO 63017
(636) 530-0202
✔ PECOS✔ Accepts Medicare3.6 mi
John Lyman, OD
Optometry
NPI 1669580882
2330 MID RIVERS MALL
Saint Peters, MO 63376
(636) 970-2448
✔ PECOS✔ Accepts Medicare13 mi
Dirk Massie, OD
Optometry
NPI 1972510345
4111 N ILLINOIS ST
Swansea, IL 62226
(618) 234-3053
✔ PECOS✔ Accepts Medicare33 mi

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 Pec Chesterfield, LLC's NPI number?

The NPI number for Pec Chesterfield, LLC is 1811500069. It was assigned to this organization in the NPPES registry on August 27, 2020.

Where is Pec Chesterfield, LLC located?

Pec Chesterfield, LLC is located at 317 Clarkson Rd Ste 102, Ellisville, MO 63011. The listed phone number is (636) 725-2020.

What is Pec Chesterfield, LLC's specialty?

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

Is Pec Chesterfield, LLC enrolled in Medicare?

Yes. Pec Chesterfield, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pec Chesterfield, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Optometry, reassign their Medicare billing to Pec Chesterfield, LLC. 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 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Pec Chesterfield, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Medica list Pec Chesterfield, LLC 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 Pec Chesterfield, LLC was last updated on August 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.