Josef Zwass, MD
NPI 1407915002 · Neonatal-Perinatal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josef Zwass, MD is a Neonatal-Perinatal Medicine Physician provider in San Diego, CA (NPI 1407915002).
Provider details
- NPI number
- 1407915002
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G62469 (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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1809 National AveSan Diego, CA 92113-2113Phone: (619) 515-2300
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-12-22
- Certified
- 2021-12-22
Frequently asked questions
- What is Josef Zwass's NPI number?
- Josef Zwass's National Provider Identifier (NPI) is 1407915002, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josef Zwass's specialty?
- Josef Zwass is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Josef Zwass located?
- Josef Zwass's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Josef Zwass's phone number?
- The practice phone number listed in the NPPES registry for Josef Zwass is (619) 528-5000.
- Does Josef Zwass accept Medicare?
- Josef Zwass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josef Zwass's NPI active?
- Yes — Josef Zwass's NPI (1407915002) is active in the NPPES registry as of the last update on 2021-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.