Brenna Chalmers, MD
NPI 1306182530 · Diagnostic Radiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brenna Chalmers, MD is a Diagnostic Radiology Physician provider in Los Angeles, CA (NPI 1306182530).
Provider details
- NPI number
- 1306182530
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A118885 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
4,448 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) |
|---|---|---|
| Screening Mammography77067 | 600 | $37 |
| Screening 3d Breast Mammography77063 | 597 | $29 |
| X-Ray of Chest, 1 View71045 | 588 | $9 |
| Screening 3d Breast Mammography77063 | 455 | $29 |
| Screening Mammography77067 | 455 | $37 |
| Ct Scan Head Or Brain Without Contrast70450 | 200 | $41 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 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
- 2012-12-15
- Last updated
- 2015-07-02
Frequently asked questions
- What is Brenna Chalmers's NPI number?
- Brenna Chalmers's National Provider Identifier (NPI) is 1306182530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brenna Chalmers's specialty?
- Brenna Chalmers is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Brenna Chalmers located?
- Brenna Chalmers's practice location on file with NPPES is 1500 San Pablo St, Los Angeles, CA 90033-5313.
- What is Brenna Chalmers's phone number?
- The practice phone number listed in the NPPES registry for Brenna Chalmers is (323) 442-8541.
- Does Brenna Chalmers accept Medicare?
- Brenna Chalmers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brenna Chalmers's NPI active?
- Yes — Brenna Chalmers's NPI (1306182530) is active in the NPPES registry as of the last update on 2015-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.