Nancy Diane Olson , MA, NCC, LCPC
Counselor • Crystal Lake, IL
8600 Us Highway 14, Suite C
Crystal Lake, IL 600122706
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
8600 Us Highway 14
Suite C
Crystal Lake, IL 600122706
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
Counselor: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2010
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, “Does your provider accept Medicare as full payment?”
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 Crystal Lake and Illinois
22 active clinicians are listed under Counselor with a practice address in Crystal Lake, IL (3,805 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Crystal Lake
4.5% of these 22 clinicians have the CMS telehealth indicator.
18.2% of these 22 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 · Report an error.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 101Y00000X
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Social Worker - Clinical
Licensed Clinical Social Worker
Dentist - General Practice
Doctor of Dental Surgery
Psychologist - Clinical
Doctor of Psychology (Psy.D.)
Chiropractor
Doctor of Chiropractic
Career & Practice History
NPI enumerated November 09, 2010.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
8600 Us Highway 14, Suite C
Crystal Lake, IL 600122706
Phone: 8155299260