Brendan Calhoun, MD
NPI 1649682089 · Diagnostic Radiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brendan Calhoun, MD is a Diagnostic Radiology Physician provider in Saint Louis, MO (NPI 1649682089).
Provider details
- NPI number
- 1649682089
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2019012966 (MO)
Specialties & taxonomies
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 tenure25% of score
12 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
2,844 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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 713 | $9 |
| X-Ray of Chest, 1 View71045 | 456 | $8 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 219 | $108 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 168 | $9 |
| Mri Scan of Abdomen Before and After Contrast74183 | 125 | $98 |
| Mri Scan of Pelvis Before and After Contrast72197 | 121 | $97 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 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
- 2014-05-20
- Last updated
- 2024-02-21
- Certified
- 2024-02-21
Frequently asked questions
- What is Brendan Calhoun's NPI number?
- Brendan Calhoun's National Provider Identifier (NPI) is 1649682089, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brendan Calhoun's specialty?
- Brendan Calhoun is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Brendan Calhoun located?
- Brendan Calhoun's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Brendan Calhoun's phone number?
- The practice phone number listed in the NPPES registry for Brendan Calhoun is (314) 251-6031.
- Does Brendan Calhoun accept Medicare?
- Brendan Calhoun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brendan Calhoun's NPI active?
- Yes — Brendan Calhoun's NPI (1649682089) is active in the NPPES registry as of the last update on 2024-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.