Gary Horn, M.D.
NPI 1720399629 · Diagnostic Radiology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Horn, M.D. is a Diagnostic Radiology Physician provider in Houston, TX (NPI 1720399629).
Provider details
- NPI number
- 1720399629
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 262077 (MA)
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 tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,145 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 267 | $8 |
| Mri Scan of Abdomen Before and After Contrast74183 | 161 | $101 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 124 | $83 |
| Mri Scan of Pelvis Before and After Contrast72197 | 104 | $101 |
| Ct Scan of Chest Without Contrast71250 | 82 | $49 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 73 | $81 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$90 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
Additional practice locations (1)
- 7200 Cambridge StHouston, TX 77030-4202Phone: (713) 798-2400
Registry dates
- Enumerated
- 2010-06-24
- Last updated
- 2025-08-27
- Certified
- 2025-08-27
Frequently asked questions
- What is Gary Horn's NPI number?
- Gary Horn's National Provider Identifier (NPI) is 1720399629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Horn's specialty?
- Gary Horn is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Horn located?
- Gary Horn's practice location on file with NPPES is 6560 Fannin St, Houston, TX 77030-2761.
- What is Gary Horn's phone number?
- The practice phone number listed in the NPPES registry for Gary Horn is (713) 441-4431.
- Does Gary Horn accept Medicare?
- Gary Horn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Horn's NPI active?
- Yes — Gary Horn's NPI (1720399629) is active in the NPPES registry as of the last update on 2025-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.