MARGARET B. STRUB MD
NPI 1528146123
Allergy & Immunology in Seattle, WA
About Margaret B. Strub Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET B. STRUB MD (NPI 1528146123) is an individual allergy & immunology provider in Seattle, Washington, licensed in California (G54698) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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)
Margaret B. Strub Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Margaret Strub reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 2,678 clinicians in this Medicare group
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94133
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
Lancaster, CA 93534
- Reassigned Medicare billing, California enrollment
- 13,921 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.
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 Margaret Strub's NPI number?
The NPI number for Margaret Strub is 1528146123. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Margaret Strub located?
Margaret Strub practices at 125 16th Ave E, Seattle, WA 98112. The listed phone number is (206) 326-3000.
What is Margaret Strub's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Margaret Strub enrolled in Medicare?
Yes. Margaret Strub is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Margaret Strub's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Strub reassigns Medicare benefits to 4 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA), Permanente Medical Group Inc (Vallejo, CA), City & County Of San Francisco (San Francisco, CA) and Southern California Permanente Medical Group (Lancaster, 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 Margaret Strub'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 Margaret Strub was last updated on September 26, 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.
# Margaret B. Strub, MD · NPI 1528146123
Allergy & Immunology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since November 1, 2006.
## Identity
- **NPI:** 1528146123 (Entity type: Individual)
- **Enumerated:** November 1, 2006
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** G54698 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 125 16TH AVE E, Seattle, WA 98112-5211
- **Phone:** (206) 326-3000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA); Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA); City & County Of San Francisco (NPI 1023579356, San Francisco, CA); Southern California Permanente Medical Group (NPI 1982863783, Lancaster, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 26, 2023
- **Other identifiers:** Medicaid 00G546980 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1528146123) · Data from the CMS NPPES public registry.