Joel Block, MD
NPI 1225098189 · Diagnostic Radiology Physician · Rancho Cucamongo, CA
Joel Block, MD is a Diagnostic Radiology Physician provider in Rancho Cucamongo, CA (NPI 1225098189).
Provider details
- NPI number
- 1225098189
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G44323 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-03-24
- Last updated
- 2012-03-27
Frequently asked questions
- What is Joel Block's NPI number?
- Joel Block's National Provider Identifier (NPI) is 1225098189, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Block's specialty?
- Joel Block is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Joel Block located?
- Joel Block's practice location on file with NPPES is 8599 Haven Ave., Rancho Cucamongo, CA 91730-4849.
- What is Joel Block's phone number?
- The practice phone number listed in the NPPES registry for Joel Block is (909) 620-8180.
- Is Joel Block's NPI active?
- Yes — Joel Block's NPI (1225098189) is active in the NPPES registry as of the last update on 2012-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.