David Gregg, MD
NPI 1134178601 · Diagnostic Radiology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Gregg, MD is a Diagnostic Radiology Physician provider in Milwaukee, WI (NPI 1134178601).
Provider details
- NPI number
- 1134178601
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25274 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 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
Additional practice locations (1)
- 9200 W Wisconsin AveMilwaukee, WI 53226-3522Phone: (414) 805-2060Fax: (414) 259-9290
Registry dates
- Enumerated
- 2006-05-10
- Last updated
- 2024-03-11
- Certified
- 2024-03-11
Frequently asked questions
- What is David Gregg's NPI number?
- David Gregg's National Provider Identifier (NPI) is 1134178601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Gregg's specialty?
- David Gregg is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is David Gregg located?
- David Gregg's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874.
- What is David Gregg's phone number?
- The practice phone number listed in the NPPES registry for David Gregg is (414) 266-1686.
- Does David Gregg accept Medicare?
- David Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Gregg's NPI active?
- Yes — David Gregg's NPI (1134178601) is active in the NPPES registry as of the last update on 2024-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.