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DR. WILLIAM A SPISAK M.D.
NPI 1740274554
Specialist in Portland, OR

Active since September 07, 2005PECOS Enrolled
93.11/100
CMS Quality Rating
6655 SW GRIFFIN DR, PORTLAND, OR 97223(503) 706-5902 Get Directions Write a Review

NPPES record last updated: October 25, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William A Spisak M.d. NPPES

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

DR. WILLIAM A SPISAK M.D. (NPI 1740274554) is an individual specialist in Portland, Oregon, licensed in Oregon (OR13012) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740274554
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. WILLIAM A SPISAKCredential: M.D.
Location Address6655 SW GRIFFIN DRPortland, OR 97223
Mailing Address5050 Ne Hoyt St, Suite 203Portland, OR 97213-2991 · (503) 282-7731 · Fax (503) 230-9201
Phone(503) 706-5902
Sole ProprietorYes
Enumeration DateSeptember 7, 2005
Last NPPES UpdateOctober 25, 2019
✔ NPI 1740274554 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in OR · OR13012
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
6655 SW GRIFFIN DR, Portland, OR 97223
Open in Google Maps ↗

Other Identifiers 2

Other110007601OR · Palmetto Gba
Medicaid268300OR

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William A Spisak M.d. 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 William Spisak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Legacy Clinics LLC
4.6 mi
Clinic/Center
1130 NW 22ND AVE STE 220
Portland, OR 97210
  • Reassigned Medicare billing, Oregon enrollment
  • 1,248 clinicians in this Medicare group
NPI 1902827272 (503) 413-2901
Providence Health & Services - Oregon
7.5 mi
General Acute Care Hospital
4805 NE GLISAN ST
Portland, OR 97213
  • Reassigned Medicare billing, Oregon enrollment
  • 676 clinicians in this Medicare group
NPI 1003991845 (503) 451-3000

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

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.

93.11/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality94.14
Promoting Interoperability100
Improvement Activities40
Cost78.74

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 William Spisak's NPI number?

The NPI number for William Spisak is 1740274554. It was assigned to this individual provider in the NPPES registry on September 7, 2005.

Where is William Spisak located?

William Spisak practices at 6655 SW Griffin Dr, Portland, OR 97223. The listed phone number is (503) 706-5902.

What is William Spisak's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is William Spisak enrolled in Medicare?

Yes. William Spisak is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Spisak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Spisak reassigns Medicare benefits to 2 organizations: Legacy Clinics LLC (Portland, OR) and Providence Health & Services - Oregon (Portland, OR). 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 William Spisak'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 William Spisak was last updated on October 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.