Christopher Hallmark, MD
NPI 1063854354 · Diagnostic Radiology Physician · Orlando, FL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Hallmark, MD is a Diagnostic Radiology Physician provider in Orlando, FL (NPI 1063854354).
Provider details
- NPI number
- 1063854354
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD444023 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure28% of score
12 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
1,537 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 333 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 255 | $38 |
| Ct Scan of Upper Spine Without Contrast72125 | 126 | $45 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 119 | $82 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 109 | $82 |
| Ct Scan of Lower Spine Without Contrast72131 | 59 | $43 |
| Ct Scan of Middle Spine Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-07-26
- Last updated
- 2023-03-27
- Certified
- 2023-03-27
Frequently asked questions
- What is Christopher Hallmark's NPI number?
- Christopher Hallmark's National Provider Identifier (NPI) is 1063854354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Hallmark's specialty?
- Christopher Hallmark is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Hallmark located?
- Christopher Hallmark's practice location on file with NPPES is 52 W Underwood St, Orlando, FL 32806-1110.
- What is Christopher Hallmark's phone number?
- The practice phone number listed in the NPPES registry for Christopher Hallmark is (321) 842-8475.
- Does Christopher Hallmark accept Medicare?
- Christopher Hallmark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Hallmark's NPI active?
- Yes — Christopher Hallmark's NPI (1063854354) is active in the NPPES registry as of the last update on 2023-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.