MACKENZIE LANE COYNE
NPI 1811799570
Optometrist in Baltimore, MD
About Mackenzie Lane Coyne NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MACKENZIE LANE COYNE (NPI 1811799570) is an individual optometrist in Baltimore, Maryland, licensed in Maryland (TA3064) and active in the NPI registry since March 2025. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Bayview Medical Center, and maintains a secondary practice location in Powell.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mackenzie Lane Coyne is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mackenzie Coyne reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Mackenzie Coyne's NPI number?
The NPI number for Mackenzie Coyne is 1811799570. It was assigned to this individual provider in the NPPES registry on March 25, 2025.
Where is Mackenzie Coyne located?
Mackenzie Coyne practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 550-5568.
What is Mackenzie Coyne's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Mackenzie Coyne enrolled in Medicare?
Yes. Mackenzie Coyne is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mackenzie Coyne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Coyne reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Massachusetts Eye And Ear Associates, Inc. (Boston, MA). Each 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 Mackenzie Coyne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mackenzie Coyne affiliated with any hospitals?
According to CMS data, Mackenzie Coyne is affiliated with Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Mackenzie Coyne was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Mackenzie Lane Coyne · NPI 1811799570
Optometrist provider in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 25, 2025.
## Identity
- **NPI:** 1811799570 (Entity type: Individual)
- **Enumerated:** March 25, 2025
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** TA3064 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4940 EASTERN AVE, Baltimore, MD 21224-2735
- **Phone:** (410) 550-5568
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1275515546, Baltimore, MD); Massachusetts Eye And Ear Associates, Inc. (NPI 1932574332, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University - College Of Optometry, class of 2025
## Record status
- **NPPES last updated:** June 25, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1811799570) · Data from the CMS NPPES public registry.