Terrence Cahill, MD
NPI 1528382603 · Physical Medicine & Rehabilitation Physician · Billings, MT
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Terrence Cahill, MD is a Physical Medicine & Rehabilitation Physician provider in Billings, MT (NPI 1528382603).
Provider details
- NPI number
- 1528382603
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036121926 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
983 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 263 | $76 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 153 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 152 | $94 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $64 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 95 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 141 | 35 |
| Gabapentin | 126 | 35 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 57 | 11 |
| Tramadol Hcl | 57 | — |
| Pregabalin | 55 | — |
| Tizanidine Hcl | 47 | 15 |
| Methocarbamol | 44 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-18
- Last updated
- 2022-02-22
- Certified
- 2022-02-22
Frequently asked questions
- What is Terrence Cahill's NPI number?
- Terrence Cahill's National Provider Identifier (NPI) is 1528382603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Terrence Cahill's specialty?
- Terrence Cahill is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Terrence Cahill located?
- Terrence Cahill's practice location on file with NPPES is 801 N 29th St, Billings, MT 59101-0905.
- What is Terrence Cahill's phone number?
- The practice phone number listed in the NPPES registry for Terrence Cahill is (406) 238-2500.
- Does Terrence Cahill accept Medicare?
- Terrence Cahill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Terrence Cahill's NPI active?
- Yes — Terrence Cahill's NPI (1528382603) is active in the NPPES registry as of the last update on 2022-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.