Ruth Macquarrie, M.D.
NPI 1942334362 · Anesthesiology Physician · Greenbrae, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Macquarrie, M.D. is a Anesthesiology Physician provider in Greenbrae, CA (NPI 1942334362).
Provider details
- NPI number
- 1942334362
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A80909 (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
19 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
- 2007-03-15
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Ruth Macquarrie's NPI number?
- Ruth Macquarrie's National Provider Identifier (NPI) is 1942334362, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Macquarrie's specialty?
- Ruth Macquarrie is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Macquarrie located?
- Ruth Macquarrie's practice location on file with NPPES is 30 Lucky Dr, Greenbrae, CA 94904-2407.
- What is Ruth Macquarrie's phone number?
- The practice phone number listed in the NPPES registry for Ruth Macquarrie is (415) 309-9605.
- Does Ruth Macquarrie accept Medicare?
- Ruth Macquarrie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Macquarrie's NPI active?
- Yes — Ruth Macquarrie's NPI (1942334362) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.