Mary Keelinn Leatherman , MS, CCC-SLP
Speech-Language Pathologist β’ Westminster, MD
200 Memorial Ave
Westminster, MD 211575726
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
200 Memorial Ave
Westminster, MD 211575726
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Westminster, MD. 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
Speech-Language Pathologist: 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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Compared with the same specialty in Westminster and Maryland
95 active clinicians are listed under Speech-Language Pathologist with a practice address in Westminster, MD (4,562 in Maryland).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Westminster
1.1% of these 95 clinicians have the CMS telehealth indicator.
8.4% of these 95 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, 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: 2022-06-07NUCC Taxonomy Code: 235Z00000X
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
Secondary Practice Locations
844 Washington Rd Ste 101
Westminster, MD 211576664
Phone: 4108765600
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Emergency Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Social Worker - Clinical
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 200 MEMORIAL AVE, WESTMINSTER, MD 211575726 (Tel: 4108483000)
Registered at 19 WANDSWORTH BRIDGE WAY, LUTHERVILLE TIMONIUM, MD 210933962 (Tel: 4432262477)
Additional practice office at 844 Washington Rd Ste 101, Westminster, MD 211576664
Recorded as MARY LEATHERMAN, M.S., CCC-SLP
Speech-Language Pathologist (license number reported to NPPES: MD 10151)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Speech-Language Pathologists in Westminster
All Speech-Language Pathologists in WestminsterMailing Address
19 Wandsworth Bridge Way
Lutherville Timonium, MD 210933962
Phone: 4432262477