Christopher Zellmer, M.D.
NPI 1346275435 · Diagnostic Radiology Physician · St Francis, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Zellmer, M.D. is a Diagnostic Radiology Physician provider in St Francis, WI (NPI 1346275435).
Provider details
- NPI number
- 1346275435
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32403 (WI)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,593 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 | 589 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 306 | $36 |
| X-Ray of Chest, 2 Views71046 | 206 | $31 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 153 | $77 |
| Ct Scan of Upper Spine Without Contrast72125 | 145 | $43 |
| Ct Scan of Chest Without Contrast71250 | 122 | $47 |
| Screening 3d Breast Mammography |
Practice location
Mailing address
Additional practice locations (1)
- 3003 W Good Hope RdMilwaukee, WI 53209-2042Phone: (414) 352-3100Fax: (414) 247-4597
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2024-06-14
- Certified
- 2024-06-14
Frequently asked questions
- What is Christopher Zellmer's NPI number?
- Christopher Zellmer's National Provider Identifier (NPI) is 1346275435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Zellmer's specialty?
- Christopher Zellmer is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Zellmer located?
- Christopher Zellmer's practice location on file with NPPES is 2000 E Layton Ave, St Francis, WI 53235-6053.
- What is Christopher Zellmer's phone number?
- The practice phone number listed in the NPPES registry for Christopher Zellmer is (414) 744-6589.
- Does Christopher Zellmer accept Medicare?
- Christopher Zellmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Zellmer's NPI active?
- Yes — Christopher Zellmer's NPI (1346275435) is active in the NPPES registry as of the last update on 2024-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.