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

Terrence J Cahill, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1528382603

Terrence J Cahill, MD is a Physical Medicine and Rehabilitation in Billings, Montana. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2006, 20 years ago. Practices with Billings Clinic, a 805-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Montana.

Years since qualifying
20
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL, MT
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

801 N 29th St
Billings, MT 59101-0905
Phone: (406) 238-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence 12375 (MT)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 036121926 (IL)

Record details

NPI number1528382603
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 18, 2010
Last updated in NPPESFebruary 22, 2022
Certification dateFebruary 22, 2022
Mailing addressPo Box 35100, Billings, MT 59107-5100

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2006 (20 years in practice)
Group practice Billings Clinic — 805 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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