Thomas Gast, MD
NPI 1669637153 · Diagnostic Radiology Physician · Mishawaka, IN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Gast, MD is a Diagnostic Radiology Physician provider in Mishawaka, IN (NPI 1669637153).
Provider details
- NPI number
- 1669637153
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 336075522 (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
17 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
13 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 of Blood Vessels of Abdomen and Pelvis With Contrast74174 | 13 | $106 |
Typical Medicare-allowed amounts for these services range $106–$106 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-23
- Last updated
- 2021-04-23
- Certified
- 2021-04-23
Frequently asked questions
- What is Thomas Gast's NPI number?
- Thomas Gast's National Provider Identifier (NPI) is 1669637153, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Gast's specialty?
- Thomas Gast is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Gast located?
- Thomas Gast's practice location on file with NPPES is 620 W Edison Rd, Mishawaka, IN 46545-2784.
- What is Thomas Gast's phone number?
- The practice phone number listed in the NPPES registry for Thomas Gast is (574) 258-1100.
- Does Thomas Gast accept Medicare?
- Thomas Gast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Gast's NPI active?
- Yes — Thomas Gast's NPI (1669637153) is active in the NPPES registry as of the last update on 2021-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.