Marin Hospitalist Medical Group, Inc.
NPI 1023041753 · Internal Medicine Physician · Greenbrae, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marin Hospitalist Medical Group, Inc. is a Internal Medicine Physician organization in Greenbrae, CA (NPI 1023041753).
Provider details
- NPI number
- 1023041753
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Douglas Cohen, Ceo(415) 518-8115
- License
- G73589 (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
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
- 2006-07-08
- Last updated
- 2020-08-19
- Certified
- 2020-08-19
Frequently asked questions
- What is Marin Hospitalist Medical Group, Inc.'s NPI number?
- Marin Hospitalist Medical Group, Inc.'s National Provider Identifier (NPI) is 1023041753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marin Hospitalist Medical Group, Inc.?
- Marin Hospitalist Medical Group, Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marin Hospitalist Medical Group, Inc. located?
- Marin Hospitalist Medical Group, Inc.'s practice location on file with NPPES is 250 Bon Air Rd, Greenbrae, CA 94904-1702.
- What is Marin Hospitalist Medical Group, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Marin Hospitalist Medical Group, Inc. is (415) 925-7545.
- Does Marin Hospitalist Medical Group, Inc. accept Medicare?
- Marin Hospitalist Medical Group, Inc. 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 Marin Hospitalist Medical Group, Inc.?
- The authorized official listed on Marin Hospitalist Medical Group, Inc.'s NPPES record is Douglas Cohen, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marin Hospitalist Medical Group, Inc.'s NPI active?
- Yes — Marin Hospitalist Medical Group, Inc.'s NPI (1023041753) is active in the NPPES registry as of the last update on 2020-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.