MARK DANIEL SULLIVAN
NPI 1639269590
Psychiatry & Neurology - Psychiatry in Seattle, WA
About Mark Daniel Sullivan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK DANIEL SULLIVAN (NPI 1639269590) is an individual psychiatry provider in Seattle, Washington, licensed in Washington (MD00023050) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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)
Mark Daniel Sullivan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Sullivan 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
- 4,364 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
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 98195 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Mark Sullivan's NPI number?
The NPI number for Mark Sullivan is 1639269590. It was assigned to this individual provider in the NPPES registry on October 13, 2006.
Where is Mark Sullivan located?
Mark Sullivan practices at University Of Washington Medical Ctr 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 598-4282.
What is Mark Sullivan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Mark Sullivan enrolled in Medicare?
Yes. Mark Sullivan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Sullivan reassigns Medicare benefits to The Association Of University Physicians (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 Mark Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Sullivan accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Mark Sullivan 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 Mark Sullivan was last updated on February 20, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mark Daniel Sullivan · NPI 1639269590
Psychiatry physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 13, 2006.
## Identity
- **NPI:** 1639269590 (Entity type: Individual)
- **Enumerated:** October 13, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** MD00023050 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST, Seattle, WA 98195-6044
- **Phone:** (206) 598-4282
## 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:** The Association Of University Physicians (NPI 1023041159, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 20, 2013
- **Other identifiers:** Other 0175020 (WA); Other 6915; Medicare PIN 000107210 (WA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1639269590) · Data from the CMS NPPES public registry.