Ruth Rassel, D.O.
NPI 1013116433 · Surgery Physician · Tiburon, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Rassel, D.O. is a Surgery Physician provider in Tiburon, CA (NPI 1013116433).
Provider details
- NPI number
- 1013116433
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A9890 (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
18 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
- 2007-07-16
- Last updated
- 2007-07-16
Frequently asked questions
- What is Ruth Rassel's NPI number?
- Ruth Rassel's National Provider Identifier (NPI) is 1013116433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Rassel's specialty?
- Ruth Rassel is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Rassel located?
- Ruth Rassel's practice location on file with NPPES is 2 Mariposa Ct, Tiburon, CA 94920-2017.
- What is Ruth Rassel's phone number?
- The practice phone number listed in the NPPES registry for Ruth Rassel is (415) 272-1131.
- Does Ruth Rassel accept Medicare?
- Ruth Rassel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Rassel's NPI active?
- Yes — Ruth Rassel's NPI (1013116433) is active in the NPPES registry as of the last update on 2007-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.