Mackenzie Virginia Marr , MS, LGC
Genetic Counselor, MS β’ Columbus, OH
700 Childrens Dr
Columbus, OH 432052664
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
700 Childrens Dr
Columbus, OH 432052664
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 7 distinct additional practice-address records in Athens, OH; Columbus, OH; Dublin, OH and 3 more. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Genetic Counselor, MS: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2022
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Columbus and Ohio
101 active clinicians are listed under Genetic Counselor, MS with a practice address in Columbus, OH (340 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Columbus
0% of these 101 clinicians have the CMS telehealth indicator.
0% of these 101 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-01-28NUCC Taxonomy Code: 170300000X
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.
Secondary Practice Locations
5665 Venture Dr
Dublin, OH 430172159
Phone: 6147222000
740 Adair Ave
Zanesville, OH 437012838
Phone: 6147226200
455 Executive Campus Dr
Westerville, OH 430828870
Phone: 6147222000
555 S 18th St
Columbus, OH 432052654
Phone: 6147222000
187 W Schrock Rd
Westerville, OH 430812890
Phone: 6147222000
2222 Cherry St Ste 2600
Toledo, OH 436082675
Phone: 4192518015
26 Hospital Dr
Athens, OH 457012471
Phone: 6147226200
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Registered Nurse
Pediatrics
Doctor of Medicine (M.D.)
Nurse Practitioner - Pediatrics
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 700 CHILDRENS DR, COLUMBUS, OH 432052664 (Tel: 6147222000)
Registered at 700 CHILDRENS DR, COLUMBUS, OH 432052664
Genetic Counselor, MS (license number reported to NPPES: OH 70.000739)
NPI status registered as active in NPPES database
Registered at 700 CHILDRENS DR # E1B, COLUMBUS, OH 432052639 (Tel: 6147223024)
Registered at 700 CHILDRENS DR # E1B, COLUMBUS, OH 432052639 (Tel: 6147223024)
Recorded as MACKENZIE MARR, MS, LGC
Genetic Counselor, MS (license number reported to NPPES: OH 70.000739TEMP)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
700 Childrens Dr
Columbus, OH 432052664