MICHAEL GLUCK MD
NPI 1871516617
Internal Medicine - Gastroenterology in Seattle, WA
About Michael Gluck Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL GLUCK MD (NPI 1871516617) is an individual gastroenterology provider in Seattle, Washington, licensed in Washington (MD00020228) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 11
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michael Gluck Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Gluck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 1,021 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 98101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Michael Gluck's NPI number?
The NPI number for Michael Gluck is 1871516617. It was assigned to this individual provider in the NPPES registry on July 25, 2006.
Where is Michael Gluck located?
Michael Gluck practices at 1100 9th Ave, Seattle, WA 98101. The listed phone number is (206) 223-6600.
What is Michael Gluck's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Michael Gluck enrolled in Medicare?
Yes. Michael Gluck is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Gluck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Gluck reassigns Medicare benefits to Virginia Mason Medical Center (Seattle, WA). 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 Michael Gluck'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 Michael Gluck was last updated on March 23, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Michael Gluck, MD · NPI 1871516617
Gastroenterology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since July 25, 2006.
## Identity
- **NPI:** 1871516617 (Entity type: Individual)
- **Enumerated:** July 25, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** MD00020228 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 9TH AVE, Seattle, WA 98101-2756
- **Phone:** (206) 223-6600
## 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:** Virginia Mason Medical Center (NPI 1003970989, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 23, 2015
- **Other identifiers:** Medicare PIN AB05656 (WA); Other GL0410 (WA); Other US0862472 (WA); and 8 more
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Source: [NPI Profile](https://npiprofile.com/npi/1871516617) · Data from the CMS NPPES public registry.