IndividualActive
Jack Rosenfeld
NPI 1225106727 · Dentist · Martinez, CA
Jack Rosenfeld is a Dentist provider in Martinez, CA (NPI 1225106727).
Provider details
- NPI number
- 1225106727
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25835 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
2500 Alhambra Ave
Martinez, CA 94553-3156
Phone: (925) 370-5110
Fax: (925) 370-5142
Street-level locationGet directions
Mailing address
50 Douglas Dr
Martinez, CA 94553-4098
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jack Rosenfeld's NPI number?
- Jack Rosenfeld's National Provider Identifier (NPI) is 1225106727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Rosenfeld's specialty?
- Jack Rosenfeld is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Jack Rosenfeld located?
- Jack Rosenfeld's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Jack Rosenfeld's phone number?
- The practice phone number listed in the NPPES registry for Jack Rosenfeld is (925) 370-5110.
- Is Jack Rosenfeld's NPI active?
- Yes — Jack Rosenfeld's NPI (1225106727) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.