Dr. John Hartford Mackenzie , OD
Optometrist • Chelmsford, MA
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. John Mackenzie has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. John Mackenzie, OD was a registered Optometrist practicing in Chelmsford, MA. Throughout an active medical career spanning 16 years, Dr. Mackenzie provided care at the practice location at 3 COURTHOUSE LN until profile deactivation on 2022-09-28.
Historical Medicare Part B clinical services included established patient complete exam of visual system, new patient complete exam of visual system. Public procedure reimbursement records and service volume details are provided below for historical transparency.
Practice Location & Contact Primary Location
3 Courthouse Ln
Suite 1 A
Chelmsford, MA 018241722
Specialty Benchmarks & Practice Insights
Comparative analytics for Optometrist in Chelmsford, MA
Practicing in Chelmsford, MA (1567 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
92014
Established patient complete exam of visual system
|
38 | 38 | $125.00 | $123.43 |
|
92004
New patient complete exam of visual system
|
29 | 29 | $150.00 | $148.34 |
Medical Specialties & State Licenses
NUCC Taxonomy Code: 152W00000X
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.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Counselor
Counselor
Master of Arts
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Counselor - Mental Health
Registered Nurse, C
Social Worker - Clinical
Licensed Independent Clinical Social Worker, CADACII, Licensed Alcohol and Drug Counselor
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on September 28, 2022
NPI status registered as active in NPPES database
Registered at 3 COURTHOUSE LN, SUITE 1 A, CHELMSFORD, MA 018241722 (Tel: 9784533681)
Registered at 3 COURTHOUSE LN, SUITE 1 A, CHELMSFORD, MA 018241722 (Tel: 9784533681)
Recorded as JOHN MACKENZIE, OD
Optometrist (License #MA 2257 in MA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
3 Courthouse Ln, Suite 1 A
Chelmsford, MA 018241722
Phone: 9784533681
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