Joseph Chen, MD
NPI 1952388464 · Preventive Medicine/Occupational Environmental Medicine Physician · Alameda, CA
Joseph Chen, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Alameda, CA (NPI 1952388464).
Provider details
- NPI number
- 1952388464
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MA55549 (NJ)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense MA55549 (NJ)
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
- 2005-12-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joseph Chen's NPI number?
- Joseph Chen's National Provider Identifier (NPI) is 1952388464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Chen's specialty?
- Joseph Chen is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Chen located?
- Joseph Chen's practice location on file with NPPES is Building 1 Coast Guard Island Drive, Alameda, CA 94501.
- What is Joseph Chen's phone number?
- The practice phone number listed in the NPPES registry for Joseph Chen is (510) 437-3598.
- Is Joseph Chen's NPI active?
- Yes — Joseph Chen's NPI (1952388464) 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.