John Mach, DO
NPI 1104312909 · Diagnostic Radiology Physician · Providence, RI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mach, DO is a Diagnostic Radiology Physician provider in Providence, RI (NPI 1104312909).
Provider details
- NPI number
- 1104312909
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5151014051 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
703 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 72 | $39 |
| Mri Scan of Brain Before and After Contrast70553 | 71 | $109 |
| Mri Scan of Brain Without Contrast70551 | 67 | $70 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 63 | $195 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 58 | $71 |
| X-Ray of Chest, 2 Views71046 | 47 |
Practice location
Mailing address
Additional practice locations (4)
- 211 Park StAttleboro, MA 02703-3143Phone: (508) 222-5200
- 123 Summer StWorcester, MA 01608-1216Phone: (508) 363-6040
- 123 Summer StWorcester, MA 01608-1216Phone: (508) 363-6040
- 4201 Saint Antoine St # St9cDetroit, MI 48201Phone: (313) 745-3000
Registry dates
- Enumerated
- 2018-07-03
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is John Mach's NPI number?
- John Mach's National Provider Identifier (NPI) is 1104312909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mach's specialty?
- John Mach is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mach located?
- John Mach's practice location on file with NPPES is 593 Eddy St, Providence, RI 02903-4923.
- What is John Mach's phone number?
- The practice phone number listed in the NPPES registry for John Mach is (401) 432-2500.
- Does John Mach accept Medicare?
- John Mach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mach's NPI active?
- Yes — John Mach's NPI (1104312909) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.