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DENNIS MAYOCK
NPI 1013932680
Pediatrics - Neonatal-Perinatal Medicine in Seattle, WA

Active since July 13, 2006PECOS Enrolled
PEDIATRICS, BOX 356320, UNIVERSITY OF WASHINGTON, SEATTLE, WA 98195(206) 543-3200 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dennis Mayock NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DENNIS MAYOCK (NPI 1013932680) is an individual neonatal-perinatal medicine provider in Seattle, Washington, licensed in Washington (MD00016391) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013932680
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDENNIS MAYOCK
Location AddressPEDIATRICS, BOX 356320, UNIVERSITY OF WASHINGTONSeattle, WA 98195-6320
Mailing AddressPediatrics, Box 356320, University Of WashingtonSeattle, WA 98195-6320
Phone(206) 543-3200
Sole ProprietorNo
Enumeration DateJuly 13, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1013932680 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in WA · MD00016391
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
PEDIATRICS, BOX 356320, Seattle, WA 98195
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Other Identifiers 2

Medicare UPINA05117WA
Medicaid8101792WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dennis Mayock is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Dennis Mayock reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Association Of Chrmc And University Physicians
1.4 mi
Pediatrics
4500 SAND POINT WAY NE
Seattle, WA 98105
  • Reassigned Medicare billing, Washington enrollment
  • 1,443 clinicians in this Medicare group
NPI 1255449963 (206) 987-8450
The Association Of University Physicians
3.2 mi
Anesthesiology
701 5TH AVE, SUITE 700
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 4,364 clinicians in this Medicare group
NPI 1023041159 (206) 543-6420

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Dennis Mayock's NPI number?

The NPI number for Dennis Mayock is 1013932680. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Dennis Mayock located?

Dennis Mayock practices at Pediatrics, Box 356320 University Of Washington, Seattle, WA 98195. The listed phone number is (206) 543-3200.

What is Dennis Mayock's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Dennis Mayock enrolled in Medicare?

Yes. Dennis Mayock is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Dennis Mayock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Mayock reassigns Medicare benefits to 2 organizations: The Association Of Chrmc And University Physicians (Seattle, WA) and The Association Of University Physicians (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 Dennis Mayock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dennis Mayock accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Dennis Mayock 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 Dennis Mayock was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.