DR. ALAN ROBERTSON WILLIAMS II M.D.
NPI 1174700215
Emergency Medicine in Clackamas, OR
About Dr. Alan Robertson Williams Ii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALAN ROBERTSON WILLIAMS II M.D. (NPI 1174700215) is an individual emergency medicine provider in Clackamas, Oregon, licensed in Oregon (MD158945) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Alan Robertson Williams Ii M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Alan Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97204
- Reassigned Medicare billing, Oregon enrollment
- 163 clinicians in this Medicare group
Newberg, OR 97132
- Reassigned Medicare billing, Oregon enrollment
- 198 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 311 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 3
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 97015 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
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 Alan Williams's NPI number?
The NPI number for Alan Williams is 1174700215. It was assigned to this individual provider in the NPPES registry on January 30, 2008.
Where is Alan Williams located?
Alan Williams practices at 10180 SE Sunnyside Road Emergency Department, Clackamas, OR 97015. The listed phone number is (503) 652-2880.
What is Alan Williams's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alan Williams enrolled in Medicare?
Yes. Alan Williams is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alan Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Williams reassigns Medicare benefits to 3 organizations: Northwest Acute Care Specialists PC (Portland, OR), Providence Health & Services - Oregon (Newberg, OR) and Providence Health & Services - Oregon (Medford, 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 Alan Williams'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 Alan Williams was last updated on September 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Alan Robertson Williams II, M.D. · NPI 1174700215
Emergency Medicine physician in Clackamas, Oregon. Individual provider, active in the CMS NPPES registry since January 30, 2008.
## Identity
- **NPI:** 1174700215 (Entity type: Individual)
- **Enumerated:** January 30, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD158945 (Oregon)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 10180 SE SUNNYSIDE ROAD, EMERGENCY DEPARTMENT, Clackamas, OR 97015
- **Phone:** (503) 652-2880
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Northwest Acute Care Specialists PC (NPI 1215983200, Portland, OR); Providence Health & Services - Oregon (NPI 1174074868, Newberg, OR); Providence Health & Services - Oregon (NPI 1093976243, Medford, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 6, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1174700215) · Data from the CMS NPPES public registry.