MOLLY ELISE MCCALLUM
NPI 1407336779
Internal Medicine - Endocrinology, Diabetes & Metabolism in Novato, CA
About Molly Elise Mccallum NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOLLY ELISE MCCALLUM (NPI 1407336779) is an individual endocrinology, diabetes & metabolism provider in Novato, California, licensed in California (A195576) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Molly Elise Mccallum is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Molly Mccallum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94945 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NOVATO, CA 94945
NOVATO, CA 94945
NOVATO, CA 94945
NOVATO, CA 94945
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 Molly Mccallum's NPI number?
The NPI number for Molly Mccallum is 1407336779. It was assigned to this individual provider in the NPPES registry on August 16, 2018.
Where is Molly Mccallum located?
Molly Mccallum practices at 165 Rowland Way, Novato, CA 94945. The listed phone number is (415) 923-6500.
What is Molly Mccallum's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Molly Mccallum enrolled in Medicare?
Yes. Molly Mccallum is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Molly Mccallum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Molly Mccallum reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, CA). The 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 Molly Mccallum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Molly Mccallum was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.
# Molly Elise Mccallum · NPI 1407336779
Endocrinology, Diabetes & Metabolism physician in Novato, California. Individual provider, active in the CMS NPPES registry since August 16, 2018.
## Identity
- **NPI:** 1407336779 (Entity type: Individual)
- **Enumerated:** August 16, 2018
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** A195576 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 165 ROWLAND WAY, Novato, CA 94945-5038
- **Phone:** (415) 923-6500
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Sutter Bay Medical Foundation (NPI 1366898538, Orinda, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1407336779) · Data from the CMS NPPES public registry.