IndividualActive
Jonathan Ashby, DO
NPI 1972784882 · Family Medicine Physician · Duarte, CA
Jonathan Ashby, DO is a Family Medicine Physician provider in Duarte, CA (NPI 1972784882).
Provider details
- NPI number
- 1972784882
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8183 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
1755 Huntington Dr
104
Duarte, CA 91010-2567
Phone: (626) 303-4651
Fax: (626) 358-0915
Street-level locationGet directions
Mailing address
1755 Huntington Dr
Duarte, CA 91010-2567
Registry dates
- Enumerated
- 2007-11-19
- Last updated
- 2010-05-21
Frequently asked questions
- What is Jonathan Ashby's NPI number?
- Jonathan Ashby's National Provider Identifier (NPI) is 1972784882, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Ashby's specialty?
- Jonathan Ashby is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Ashby located?
- Jonathan Ashby's practice location on file with NPPES is 1755 Huntington Dr, Duarte, CA 91010-2567.
- What is Jonathan Ashby's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Ashby is (626) 303-4651.
- Is Jonathan Ashby's NPI active?
- Yes — Jonathan Ashby's NPI (1972784882) is active in the NPPES registry as of the last update on 2010-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.