John Werner, MD
NPI 1720735475 · Vascular & Interventional Radiology Physician · Seal Beach, CA
John Werner, MD is a Vascular & Interventional Radiology Physician provider in Seal Beach, CA (NPI 1720735475).
Provider details
- NPI number
- 1720735475
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G13437 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
- 2022-03-03
- Last updated
- 2022-03-03
- Certified
- 2022-03-02
Frequently asked questions
- What is John Werner's NPI number?
- John Werner's National Provider Identifier (NPI) is 1720735475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Werner's specialty?
- John Werner is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Werner located?
- John Werner's practice location on file with NPPES is 1495 Seal Way, Seal Beach, CA 90740-6580.
- What is John Werner's phone number?
- The practice phone number listed in the NPPES registry for John Werner is (562) 430-9555.
- Is John Werner's NPI active?
- Yes — John Werner's NPI (1720735475) is active in the NPPES registry as of the last update on 2022-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.