Eileen Duffy Farmer , MS, CCC-SLP
Speech-Language Pathologist β’ Northfield, IL
7 Happ Rd
Northfield, IL 600933411
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
7 Happ Rd
Northfield, IL 600933411
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Speech-Language Pathologist: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2017
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 Northfield and Illinois
17 active clinicians are listed under Speech-Language Pathologist with a practice address in Northfield, IL (10,226 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Northfield
0% of these 17 clinicians have the CMS telehealth indicator.
0% of these 17 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: 2026-04-23NUCC 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.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 7 HAPP RD, NORTHFIELD, IL 600933411 (Tel: 8477847683)
Registered at 1066 PINE ST, WINNETKA, IL 600932043 (Tel: 8477572178)
Speech-Language Pathologist (license number reported to NPPES: IL 146.016437)
NPI status registered as active in NPPES database
Registered at 901 CASTRO ST, SAN FRANCISCO, CA 941143209 (Tel: 4152559395)
Registered at 738 LONG BRIDGE ST APT 412, SAN FRANCISCO, CA 941582461 (Tel: 8477572178)
Recorded as EILEEN FARMER, M.S., CCC-SLP
Speech-Language Pathologist (license number reported to NPPES: CA 25206)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
1066 Pine St
Winnetka, IL 600932043
Phone: 8477572178