WILLIAM P MAIER MD PC
NPI 1710107016
Internal Medicine - Rheumatology in Eugene, OR
About William P Maier Md Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM P MAIER MD PC (NPI 1710107016) is a healthcare organization registered as a rheumatology in Eugene, Oregon and active in the NPI registry since April 2007. The organization holds a CLIA Waiver certificate valid through December 26, 2026 and lists William Paul Maier, Owner And Medical Doctor, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William P Maier Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to William P Maier MD PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 38D1007716
William P Maier MD PC Rheumatology · Eugene, ORFrequently 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 P Maier MD PC's NPI number?
The NPI number for William P Maier MD PC is 1710107016. It was assigned to this organization in the NPPES registry on April 27, 2007.
Where is William P Maier MD PC located?
William P Maier MD PC is located at 633 E 11th Ave, Eugene, OR 97401. The listed phone number is (541) 434-5585.
What is William P Maier MD PC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is William P Maier MD PC enrolled in Medicare?
Yes. William P Maier MD PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through William P Maier MD PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to William P Maier MD PC, in Internal Medicine and Rheumatology. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does William P Maier MD PC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 38D1007716) is associated with this NPI, valid through December 26, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does William P Maier MD PC accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc. and Regence BlueCross BlueShield of Oregon list William P Maier MD PC 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 William P Maier MD PC was last updated on August 22, 2020. 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.
# William P Maier Md Pc · NPI 1710107016
Rheumatology organization in Eugene, Oregon. Organization record, active in the CMS NPPES registry since April 27, 2007.
## Identity
- **NPI:** 1710107016 (Entity type: Organization)
- **Enumerated:** April 27, 2007
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **Organization subpart:** No
- **Authorized official:** William Maier, OWNER AND MEDICAL DOCTOR
## Practice location
- **Address:** 633 E 11TH AVE, Eugene, OR 97401-3602
- **Phone:** (541) 434-5585 · **Fax:** (541) 345-2821
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Rheumatology (2), Internal Medicine (1); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 22, 2020
- **Other identifiers:** Medicaid 028683 (OR)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1710107016) · Data from the CMS NPPES public registry.