Simon Parzen-Johnson, MD
NPI 1710410345 · Pediatrics Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simon Parzen-Johnson, MD is a Pediatrics Physician provider in Oakland, CA (NPI 1710410345).
Provider details
- NPI number
- 1710410345
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036.152806 (IL)
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
9 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
- 2017-04-10
- Last updated
- 2020-06-29
- Certified
- 2020-06-29
Frequently asked questions
- What is Simon Parzen-Johnson's NPI number?
- Simon Parzen-Johnson's National Provider Identifier (NPI) is 1710410345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simon Parzen-Johnson's specialty?
- Simon Parzen-Johnson is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Simon Parzen-Johnson located?
- Simon Parzen-Johnson's practice location on file with NPPES is 747 52nd St, Oakland, CA 94609-1809.
- What is Simon Parzen-Johnson's phone number?
- The practice phone number listed in the NPPES registry for Simon Parzen-Johnson is (510) 428-3331.
- Does Simon Parzen-Johnson accept Medicare?
- Simon Parzen-Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simon Parzen-Johnson's NPI active?
- Yes — Simon Parzen-Johnson's NPI (1710410345) is active in the NPPES registry as of the last update on 2020-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.