Ronald Wempen, MD
NPI 1497880538 · Preventive Medicine/Occupational Environmental Medicine Physician · Irvine, CA
Ronald Wempen, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Irvine, CA (NPI 1497880538).
Provider details
- NPI number
- 1497880538
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G18070 (CA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense G18070 (CA)
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-02-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Wempen's NPI number?
- Ronald Wempen's National Provider Identifier (NPI) is 1497880538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Wempen's specialty?
- Ronald Wempen is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Wempen located?
- Ronald Wempen's practice location on file with NPPES is 14795 Jeffrey Road, Irvine, CA 92618-0415.
- What is Ronald Wempen's phone number?
- The practice phone number listed in the NPPES registry for Ronald Wempen is (949) 557-8751.
- Is Ronald Wempen's NPI active?
- Yes — Ronald Wempen's NPI (1497880538) 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.