MARC GONCHAR M.D.
NPI 1437126869
Internal Medicine in Seattle, WA
About Marc Gonchar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARC GONCHAR M.D. (NPI 1437126869) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD00039437) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
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
Marc Gonchar M.d. 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 Marc Gonchar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 911 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SEATTLE, WA 98104
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 Marc Gonchar's NPI number?
The NPI number for Marc Gonchar is 1437126869. It was assigned to this individual provider in the NPPES registry on March 3, 2006.
Where is Marc Gonchar located?
Marc Gonchar practices at 904 7th Ave, Seattle, WA 98104. The listed phone number is (206) 329-1760.
What is Marc Gonchar's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Marc Gonchar enrolled in Medicare?
Yes. Marc Gonchar 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 Marc Gonchar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Gonchar reassigns Medicare benefits to The Polyclinic (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 Marc Gonchar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marc Gonchar accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Marc Gonchar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marc Gonchar was last updated on May 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Marc Gonchar, M.D. · NPI 1437126869
Internal Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since March 3, 2006.
## Identity
- **NPI:** 1437126869 (Entity type: Individual)
- **Enumerated:** March 3, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD00039437 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 904 7TH AVE, Seattle, WA 98104-1132
- **Phone:** (206) 329-1760
## 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:** The Polyclinic (NPI 1962824219, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1998
## Record status
- **NPPES last updated:** May 16, 2012
- **Other identifiers:** Medicare ID-Type Unspecified AB22301 (WA); Medicare UPIN H38953 (WA); Medicaid 8278442 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1437126869) · Data from the CMS NPPES public registry.