YOLANDA Q TAM MD
NPI 1174646509
Anesthesiology in Castro Valley, CA
About Yolanda Q Tam Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YOLANDA Q TAM MD (NPI 1174646509) is an individual anesthesiology provider in Castro Valley, California, licensed in California (A7773) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2003).
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 and accepts Medicare assignment
Yolanda Q Tam Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Yolanda Tam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 30 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Yolanda Tam's NPI number?
The NPI number for Yolanda Tam is 1174646509. It was assigned to this individual provider in the NPPES registry on April 9, 2007.
Where is Yolanda Tam located?
Yolanda Tam practices at 20103 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 537-1234.
What is Yolanda Tam's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Yolanda Tam enrolled in Medicare?
Yes. Yolanda Tam is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Yolanda Tam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yolanda Tam reassigns Medicare benefits to Alameda Anesthesia Associates Medical Group, Inc (Castro Valley, 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 Yolanda Tam'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 Yolanda Tam was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Yolanda Q Tam, MD · NPI 1174646509
Anesthesiology physician in Castro Valley, California. Individual provider, active in the CMS NPPES registry since April 9, 2007.
## Identity
- **NPI:** 1174646509 (Entity type: Individual)
- **Enumerated:** April 9, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A7773 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 20103 LAKE CHABOT RD, Castro Valley, CA 94546-5305
- **Phone:** (510) 537-1234
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Alameda Anesthesia Associates Medical Group, Inc (NPI 1487602256, Castro Valley, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1174646509) · Data from the CMS NPPES public registry.