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ROBERT E BELKNAP MD INC
NPI 1205009164
Clinic/Center - Primary Care in Mill Valley, CA

Active since April 10, 2008
655 REDWOOD HWY, MILL VALLEY, CA 94941(415) 384-0506(415) 384-0569 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Robert E Belknap Md Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT E BELKNAP MD INC (NPI 1205009164) is a healthcare organization registered as a primary care in Mill Valley, California and active in the NPI registry since April 2008. The organization lists Robert E Belknap, Ceo, as its authorized official.

NPPES Registry Identity

NPI1205009164
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameROBERT E BELKNAP MD INC
Location Address655 REDWOOD HWYMill Valley, CA 94941-3034
Mailing Address655 Redwood HwyMill Valley, CA 94941-3034 · (415) 384-0506 · Fax (415) 384-0569
Phone(415) 384-0506
Fax(415) 384-0569
Organization SubpartNo
Authorized OfficialRobert E BelknapCeo · (415) 384-0506
Enumeration DateApril 10, 2008
Last NPPES UpdateMarch 7, 2023
✔ NPI 1205009164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
License✔ Licensed in CA · A24275
655 REDWOOD HWY, Mill Valley, CA 94941
Open in Google Maps ↗

Other Identifiers 1

OtherA24275CA · Ca State License

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)

Robert E Belknap Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

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.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20080423000442Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Robert E Belknap MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Belknap, MD
Internal Medicine
NPI 1336217306
655 REDWOOD HWY SUITE 375
Mill Valley, CA 94941
(415) 384-0506
✔ PECOS✔ Accepts Medicare0.5 mi

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 Robert E Belknap MD Inc's NPI number?

The NPI number for Robert E Belknap MD Inc is 1205009164. It was assigned to this organization in the NPPES registry on April 10, 2008.

Where is Robert E Belknap MD Inc located?

Robert E Belknap MD Inc is located at 655 Redwood Hwy, Mill Valley, CA 94941. The listed phone number is (415) 384-0506.

What is Robert E Belknap MD Inc's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Robert E Belknap MD Inc enrolled in Medicare?

Yes. Robert E Belknap MD Inc is registered in the Medicare PECOS enrollment system.

When is Robert E Belknap MD Inc'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 November 30, 2026. 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 Robert E Belknap MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Robert E Belknap MD 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Robert E Belknap MD Inc was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.