Ruth Rubin, MD, Mph, a Professional Corporation
NPI 1275997660 · Internal Medicine Physician · San Rafael, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Rubin, MD, Mph, a Professional Corporation is a Internal Medicine Physician organization in San Rafael, CA (NPI 1275997660).
Provider details
- NPI number
- 1275997660
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ruth Rubin, Chief Executive Officer(415) 927-0101
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
10 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
- 2016-04-12
- Last updated
- 2016-04-13
Frequently asked questions
- What is Ruth Rubin, MD, Mph, a Professional Corporation's NPI number?
- Ruth Rubin, MD, Mph, a Professional Corporation's National Provider Identifier (NPI) is 1275997660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ruth Rubin, MD, Mph, a Professional Corporation?
- Ruth Rubin, MD, Mph, a Professional Corporation is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Rubin, MD, Mph, a Professional Corporation located?
- Ruth Rubin, MD, Mph, a Professional Corporation's practice location on file with NPPES is 1050 Northgate Dr, San Rafael, CA 94903-2526.
- What is Ruth Rubin, MD, Mph, a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Ruth Rubin, MD, Mph, a Professional Corporation is (415) 785-4246.
- Does Ruth Rubin, MD, Mph, a Professional Corporation accept Medicare?
- Ruth Rubin, MD, Mph, a Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Ruth Rubin, MD, Mph, a Professional Corporation?
- The authorized official listed on Ruth Rubin, MD, Mph, a Professional Corporation's NPPES record is Ruth Rubin, Chief Executive Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ruth Rubin, MD, Mph, a Professional Corporation's NPI active?
- Yes — Ruth Rubin, MD, Mph, a Professional Corporation's NPI (1275997660) is active in the NPPES registry as of the last update on 2016-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.