Samuel Porter, M.D.
NPI 1225284557 · Diagnostic Radiology Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Porter, M.D. is a Diagnostic Radiology Physician provider in Chattanooga, TN (NPI 1225284557).
Provider details
- NPI number
- 1225284557
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 51053 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,756 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Mri Scan of Brain Before and After Contrast70553 | 285 | $98 |
| Ct Scan Head Or Brain Without Contrast70450 | 212 | $36 |
| Mri Scan of Brain Without Contrast70551 | 191 | $64 |
| X-Ray of Chest, 1 View71045 | 163 | $8 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 124 | $65 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 102 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-18
- Last updated
- 2018-10-04
Frequently asked questions
- What is Samuel Porter's NPI number?
- Samuel Porter's National Provider Identifier (NPI) is 1225284557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Porter's specialty?
- Samuel Porter is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Porter located?
- Samuel Porter's practice location on file with NPPES is 975 E 3rd St, Chattanooga, TN 37403-2147.
- What is Samuel Porter's phone number?
- The practice phone number listed in the NPPES registry for Samuel Porter is (423) 778-7234.
- Does Samuel Porter accept Medicare?
- Samuel Porter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Porter's NPI active?
- Yes — Samuel Porter's NPI (1225284557) is active in the NPPES registry as of the last update on 2018-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.