FIRST MED MARIN MEDICAL CLINIC
NPI 1316145469
Family Medicine in Greenbrae, CA
About First Med Marin Medical Clinic NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FIRST MED MARIN MEDICAL CLINIC (NPI 1316145469) is a healthcare organization registered as a family medicine in Greenbrae, California and active in the NPI registry since July 2007. The organization lists Barry Sandford Landfield, Pres, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
First Med Marin Medical Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to First Med Marin Medical Clinic, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is First Med Marin Medical Clinic's NPI number?
The NPI number for First Med Marin Medical Clinic is 1316145469. It was assigned to this organization in the NPPES registry on July 10, 2007.
Where is First Med Marin Medical Clinic located?
First Med Marin Medical Clinic is located at 900 S Eliseo Dr Ste 202, Greenbrae, CA 94904. The listed phone number is (415) 461-3500.
What is First Med Marin Medical Clinic's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is First Med Marin Medical Clinic enrolled in Medicare?
Yes. First Med Marin Medical Clinic is registered in the Medicare PECOS enrollment system.
When is First Med Marin Medical Clinic's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through First Med Marin Medical Clinic?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Practice) reassigns their Medicare billing to First Med Marin Medical Clinic. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for First Med Marin Medical Clinic was last updated on May 26, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# First Med Marin Medical Clinic · NPI 1316145469
Family Medicine organization in Greenbrae, California. Organization record, active in the CMS NPPES registry since July 10, 2007.
## Identity
- **NPI:** 1316145469 (Entity type: Organization)
- **Enumerated:** July 10, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** Barry Landfield, PRES
## Practice location
- **Address:** 900 S ELISEO DR STE 202, Greenbrae, CA 94904-2153
- **Phone:** (415) 461-3500 · **Fax:** (415) 461-3891
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (General Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 26, 2017
- **Other identifiers:** Medicare UPIN A40779 (CA); Medicare PIN ZZZ11297Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1316145469) · Data from the CMS NPPES public registry.