DR. DAVID LUCAS BIELAK M.D.
NPI 1710214341
Family Medicine in Seattle, WA
About Dr. David Lucas Bielak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID LUCAS BIELAK M.D. (NPI 1710214341) is an individual family medicine provider in Seattle, Washington, licensed in Washington (ML 60105516) and active in the NPI registry since November 2009. He is enrolled in Medicare PECOS and maintains a secondary practice location in Seattle.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. David Lucas Bielak M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show David Bielak 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
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Omak, WA 98841
- Reassigned Medicare billing, Washington enrollment
- 179 clinicians in this Medicare group
Tonasket, WA 98855
- Reassigned Medicare billing, Washington enrollment
- 155 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 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 David Bielak's NPI number?
The NPI number for David Bielak is 1710214341. It was assigned to this individual provider in the NPPES registry on November 3, 2009.
Where is David Bielak located?
David Bielak practices at 1401 Madison St Suite 100, Seattle, WA 98104. The listed phone number is (206) 386-6111.
What is David Bielak's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Bielak enrolled in Medicare?
Yes. David Bielak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for David Bielak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Bielak reassigns Medicare benefits to 4 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA), Optum Care Washington PLLC (Everett, WA), Okanogan County Public Hospital District No. 3 (Omak, WA) and Okanogan County Public Hospital Dist No 4 (Tonasket, WA). 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 David Bielak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Bielak accept?
Health plans from Providence Health Plan list David Bielak 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 David Bielak was last updated on May 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. David Lucas Bielak, M.D. · NPI 1710214341
Family Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since November 3, 2009.
## Identity
- **NPI:** 1710214341 (Entity type: Individual)
- **Enumerated:** November 3, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** ML 60105516 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1401 MADISON ST, SUITE 100, Seattle, WA 98104
- **Phone:** (206) 386-6111
## 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); Optum Care Washington PLLC (NPI 1831186766, Everett, WA); Okanogan County Public Hospital District No. 3 (NPI 1255387403, Omak, WA); Okanogan County Public Hospital Dist No 4 (NPI 1164580700, Tonasket, WA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 18, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1710214341) · Data from the CMS NPPES public registry.