Jennifer Demertzis, MD
NPI 1245326966 · Diagnostic Radiology Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Demertzis, MD is a Diagnostic Radiology Physician provider in Chesterfield, MO (NPI 1245326966).
Provider details
- NPI number
- 1245326966
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2008007442 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,300 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) |
|---|---|---|
| Mri Scan of Leg Joint Without Contrast73721 | 258 | $60 |
| Mri Scan of Arm Joint Without Contrast73221 | 226 | $61 |
| X-Ray of Chest, 1 View71045 | 195 | $8 |
| Screening Mammography77067 | 185 | $34 |
| Screening 3d Breast Mammography77063 | 172 | $27 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 149 | $9 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2019-10-18
Frequently asked questions
- What is Jennifer Demertzis's NPI number?
- Jennifer Demertzis's National Provider Identifier (NPI) is 1245326966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Demertzis's specialty?
- Jennifer Demertzis is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Demertzis located?
- Jennifer Demertzis's practice location on file with NPPES is 232 S Woods Mill Rd, Chesterfield, MO 63017-3406.
- What is Jennifer Demertzis's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Demertzis is (314) 434-1500.
- Does Jennifer Demertzis accept Medicare?
- Jennifer Demertzis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Demertzis's NPI active?
- Yes — Jennifer Demertzis's NPI (1245326966) is active in the NPPES registry as of the last update on 2019-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.