Donald Dennis, MD
NPI 1205539244 · Diagnostic Radiology Physician · Colton, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Dennis, MD is a Diagnostic Radiology Physician provider in Colton, CA (NPI 1205539244).
Provider details
- NPI number
- 1205539244
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L.5949 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-27
- Last updated
- 2024-08-31
- Certified
- 2024-08-31
Frequently asked questions
- What is Donald Dennis's NPI number?
- Donald Dennis's National Provider Identifier (NPI) is 1205539244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Dennis's specialty?
- Donald Dennis is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Dennis located?
- Donald Dennis's practice location on file with NPPES is 400 N Pepper Ave, Colton, CA 92324-1801.
- What is Donald Dennis's phone number?
- The practice phone number listed in the NPPES registry for Donald Dennis is (909) 580-1000.
- Does Donald Dennis accept Medicare?
- Donald Dennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Dennis's NPI active?
- Yes — Donald Dennis's NPI (1205539244) is active in the NPPES registry as of the last update on 2024-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.