Ruth Friedrichsdorf, M.D.
NPI 1447686985 · Pediatrics Physician · Mill Valley, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Friedrichsdorf, M.D. is a Pediatrics Physician provider in Mill Valley, CA (NPI 1447686985).
Provider details
- NPI number
- 1447686985
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A166767 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2013-09-16
- Last updated
- 2020-08-17
- Certified
- 2020-08-17
Frequently asked questions
- What is Ruth Friedrichsdorf's NPI number?
- Ruth Friedrichsdorf's National Provider Identifier (NPI) is 1447686985, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Friedrichsdorf's specialty?
- Ruth Friedrichsdorf is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Friedrichsdorf located?
- Ruth Friedrichsdorf's practice location on file with NPPES is 61 Camino Alto Ste 107, Mill Valley, CA 94941-2910.
- What is Ruth Friedrichsdorf's phone number?
- The practice phone number listed in the NPPES registry for Ruth Friedrichsdorf is (415) 388-6303.
- Does Ruth Friedrichsdorf accept Medicare?
- Ruth Friedrichsdorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Friedrichsdorf's NPI active?
- Yes — Ruth Friedrichsdorf's NPI (1447686985) is active in the NPPES registry as of the last update on 2020-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.