Daniel Rapp, MD
NPI 1881643880 · Diagnostic Radiology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Rapp, MD is a Diagnostic Radiology Physician provider in Milwaukee, WI (NPI 1881643880).
Provider details
- NPI number
- 1881643880
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35513 (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
20 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
2,240 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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 538 | $44 |
| Screening Mammography77067 | 538 | $102 |
| X-Ray of Chest, 1 View71045 | 258 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 120 | $36 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 106 | $38 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 91 | $80 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2021-12-07
- Certified
- 2021-12-07
Frequently asked questions
- What is Daniel Rapp's NPI number?
- Daniel Rapp's National Provider Identifier (NPI) is 1881643880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Rapp's specialty?
- Daniel Rapp is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Rapp located?
- Daniel Rapp's practice location on file with NPPES is 2906 S 20th St, Milwaukee, WI 53215-3732.
- What is Daniel Rapp's phone number?
- The practice phone number listed in the NPPES registry for Daniel Rapp is (414) 385-8800.
- Does Daniel Rapp accept Medicare?
- Daniel Rapp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Rapp's NPI active?
- Yes — Daniel Rapp's NPI (1881643880) is active in the NPPES registry as of the last update on 2021-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.