Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Benjamin Jay Nager, MD

Individual provider Sleep Medicine (Psychiatry & Neurology) Physician · NPI 1508824376

Mr. Benjamin Jay Nager, MD is a Neurology in Crystal Lake, Illinois. Graduated from Tulane University School of Medicine in 1986, 40 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
40
Trained at
Tulane University School of Medicine
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

750 E Terra Cotta Ave Ste A
Crystal Lake, IL 60014
Phone: (815) 455-1800
Fax: (815) 455-1875
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1122 N Main St, Algonquin, IL 60102-3482 — (815) 338-6600

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 036082514 (IL)
Sleep Medicine (Psychiatry & Neurology) Physician Taxonomy 2084S0012X · Licence 036082514 (IL)

Record details

NPI number1508824376
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESMay 8, 2025
Certification dateMay 8, 2025
Mailing address750 E Terra Cotta Ave Ste A, Crystal Lake, IL 60014-3621

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services