DR. JEFFREY DO MD
NPI 1225088552
Anesthesiology in Castro Valley, CA
About Dr. Jeffrey Do Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFREY DO MD (NPI 1225088552) is an individual anesthesiology provider in Castro Valley, California, licensed in California (A60504) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1994).
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 and accepts Medicare assignment
Dr. Jeffrey Do 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 Reassignments
2Medicare enrollment records show Jeffrey Do reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
East Palo Alto, CA 94303
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of San Mateo
- 597 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.
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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CASTRO VALLEY, CA 94546
CASTRO VALLEY, CA 94546
CASTRO VALLEY, CA 94546
CASTRO VALLEY, CA 94546
CASTRO VALLEY, CA 94546
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 Jeffrey Do's NPI number?
The NPI number for Jeffrey Do is 1225088552. It was assigned to this individual provider in the NPPES registry on May 10, 2006.
Where is Jeffrey Do located?
Jeffrey Do practices at 20998 Redwood Rd, Castro Valley, CA 94546. The listed phone number is (510) 538-2828.
What is Jeffrey Do's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Jeffrey Do enrolled in Medicare?
Yes. Jeffrey Do 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 organizations bill Medicare for Jeffrey Do's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Do reassigns Medicare benefits to 2 organizations: Alameda Anesthesia Associates Medical Group, Inc (Castro Valley, CA) and San Mateo County (East Palo Alto, CA). Each 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 Jeffrey Do'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 Jeffrey Do was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Jeffrey Do, MD · NPI 1225088552
Anesthesiology physician in Castro Valley, California. Individual provider, active in the CMS NPPES registry since May 10, 2006.
## Identity
- **NPI:** 1225088552 (Entity type: Individual)
- **Enumerated:** May 10, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A60504 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 20998 REDWOOD RD, Castro Valley, CA 94546-5918
- **Phone:** (510) 538-2828
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Alameda Anesthesia Associates Medical Group, Inc (NPI 1487602256, Castro Valley, CA); San Mateo County (NPI 1710086301, East Palo Alto, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 00A605040 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1225088552) · Data from the CMS NPPES public registry.