TONI M. LUM MD
NPI 1508944364
Anesthesiology in Hayward, CA
About Toni M. Lum Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TONI M. LUM MD (NPI 1508944364) is an individual anesthesiology provider in Hayward, California, licensed in California (A66635) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Toni M. Lum Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Toni Lum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 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.
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.
HAYWARD, CA 94545
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 Toni Lum's NPI number?
The NPI number for Toni Lum is 1508944364. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Toni Lum located?
Toni Lum practices at 27400 Hesperian Blvd, Hayward, CA 94545. The listed phone number is (510) 784-4000.
What is Toni Lum's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Toni Lum enrolled in Medicare?
Yes. Toni Lum is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Toni Lum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Toni Lum reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Toni Lum'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 Toni Lum was last updated on December 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Toni M. Lum, MD · NPI 1508944364
Anesthesiology physician in Hayward, California. Individual provider, active in the CMS NPPES registry since November 1, 2006.
## Identity
- **NPI:** 1508944364 (Entity type: Individual)
- **Enumerated:** November 1, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A66635 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 27400 HESPERIAN BLVD, Hayward, CA 94545-4235
- **Phone:** (510) 784-4000
## 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:** Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 13, 2021
- **Other identifiers:** Medicaid 00A666350 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1508944364) · Data from the CMS NPPES public registry.