DR. COLIN DANIEL FIELDS M.D.
NPI 1902123896
Family Medicine in Seattle, WA
About Dr. Colin Daniel Fields M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. COLIN DANIEL FIELDS M.D. (NPI 1902123896) is an individual family medicine provider in Seattle, Washington, licensed in Washington (MD60305677) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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. Colin Daniel Fields 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 Reassignments
2Medicare enrollment records show Colin Fields reassigns Medicare billing to 2 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
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 292 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 98112 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.
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 Colin Fields's NPI number?
The NPI number for Colin Fields is 1902123896. It was assigned to this individual provider in the NPPES registry on May 1, 2010.
Where is Colin Fields located?
Colin Fields practices at 125 16th Ave E, Seattle, WA 98112. The listed phone number is (206) 326-3000.
What is Colin Fields's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Colin Fields enrolled in Medicare?
Yes. Colin Fields 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 Colin Fields's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colin Fields reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA) and Neighborcare Health (Seattle, 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 Colin Fields'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 Colin Fields was last updated on February 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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. Colin Daniel Fields, M.D. · NPI 1902123896
Family Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since May 1, 2010.
## Identity
- **NPI:** 1902123896 (Entity type: Individual)
- **Enumerated:** May 1, 2010
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MD60305677 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 125 16TH AVE E, Seattle, WA 98112-5211
- **Phone:** (206) 326-3000
## 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): Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA); Neighborcare Health (NPI 1073030508, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** February 3, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1902123896) · Data from the CMS NPPES public registry.