Fiona Marion
NPI 1578905345 · Pediatrics Physician · Novato, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fiona Marion is a Pediatrics Physician provider in Novato, CA (NPI 1578905345).
Provider details
- NPI number
- 1578905345
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A131198 (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
12 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)
- 5 Bon Air Rd Ste 105Larkspur, CA 94939-1137Phone: (415) 461-0440
Registry dates
- Enumerated
- 2013-07-22
- Last updated
- 2019-02-28
Frequently asked questions
- What is Fiona Marion's NPI number?
- Fiona Marion's National Provider Identifier (NPI) is 1578905345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fiona Marion's specialty?
- Fiona Marion is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Fiona Marion located?
- Fiona Marion's practice location on file with NPPES is 400 Professional Center Dr, Novato, CA 94947.
- What is Fiona Marion's phone number?
- The practice phone number listed in the NPPES registry for Fiona Marion is (415) 892-0965.
- Does Fiona Marion accept Medicare?
- Fiona Marion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fiona Marion's NPI active?
- Yes — Fiona Marion's NPI (1578905345) is active in the NPPES registry as of the last update on 2019-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.