John Sillery, M.D.
NPI 1699752709 · Diagnostic Radiology Physician · Billings, MT
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sillery, M.D. is a Diagnostic Radiology Physician provider in Billings, MT (NPI 1699752709).
Provider details
- NPI number
- 1699752709
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 48044 (MN)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,464 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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 150 | $9 |
| X-Ray of Chest, 2 Views71046 | 122 | $10 |
| X-Ray of Chest, 1 View71045 | 94 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 83 | $83 |
| X-Ray of Foot, Minimum of 3 Views73630 | 73 | $8 |
| X-Ray of Chest, 2 Views71046 | 65 | $10 |
Practice location
Mailing address
Additional practice locations (1)
- 202 Prospect DrGlendive, MT 59330-1999Phone: (406) 345-3306
Registry dates
- Enumerated
- 2005-12-29
- Last updated
- 2022-01-03
- Certified
- 2022-01-03
Frequently asked questions
- What is John Sillery's NPI number?
- John Sillery's National Provider Identifier (NPI) is 1699752709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sillery's specialty?
- John Sillery is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Sillery located?
- John Sillery's practice location on file with NPPES is 2800 10th Ave N, Billings, MT 59101-0703.
- What is John Sillery's phone number?
- The practice phone number listed in the NPPES registry for John Sillery is (406) 238-2500.
- Does John Sillery accept Medicare?
- John Sillery is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sillery's NPI active?
- Yes — John Sillery's NPI (1699752709) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.