MARIN CANCER CARE INC
NPI 1629370499
Internal Medicine - Hematology & Oncology in Greenbrae, CA
About Marin Cancer Care Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIN CANCER CARE INC (NPI 1629370499) is a healthcare organization registered as a hematology & oncology in Greenbrae, California and active in the NPI registry since November 2010. The organization maintains a secondary practice location in Greenbrae and lists Joel Criste, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Location 1
Other Identifiers 2
Group Practice 1
Accepted Insurance
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)
Marin Cancer Care Inc 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
15Medicare enrollment records show 15 clinicians reassign Medicare billing to Marin Cancer Care Inc, which bills Medicare for the services they deliver. Of these, 10 practice at this address. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (15)
San Francisco, CA 94143
Portland, OR 97227
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 Marin Cancer Care Inc's NPI number?
The NPI number for Marin Cancer Care Inc is 1629370499. It was assigned to this organization in the NPPES registry on November 29, 2010.
Where is Marin Cancer Care Inc located?
Marin Cancer Care Inc is located at 1350 S Eliseo Dr Suite 200, Greenbrae, CA 94904. The listed phone number is (415) 925-5000.
What is Marin Cancer Care Inc's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Marin Cancer Care Inc enrolled in Medicare?
Yes. Marin Cancer Care Inc is registered in the Medicare PECOS enrollment system.
When is Marin Cancer Care Inc's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare DME enrollment for this organization (California, Physician - Hematology/Oncology) 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 Marin Cancer Care Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 15 clinicians in 4 Medicare specialties reassign their Medicare billing to Marin Cancer Care Inc. 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. The largest specialties are Medical Oncology (5), Radiation Oncology (5) and Hematology/Oncology (4). Of these, 10 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Marin Cancer Care Inc accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness and Ambetter from Buckeye Health Plan and 26 other insurers list Marin Cancer Care Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marin Cancer Care Inc was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Marin Cancer Care Inc · NPI 1629370499
Hematology & Oncology organization in Greenbrae, California. Organization record, active in the CMS NPPES registry since November 29, 2010.
## Identity
- **NPI:** 1629370499 (Entity type: Organization)
- **Enumerated:** November 29, 2010
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **Organization subpart:** No
- **Authorized official:** Joel Criste, CEO
## Practice location
- **Address:** 1350 S ELISEO DR, SUITE 200, Greenbrae, CA 94904-2011
- **Phone:** (415) 925-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (DME, California, Physician - Hematology/Oncology) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 15 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Medical Oncology (5), Radiation Oncology (5), Hematology/Oncology (4); 10 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 21, 2026
- **Other identifiers:** Other 1629370499 (CA); Medicaid 3609739 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1629370499) · Data from the CMS NPPES public registry.