1. Home
  2. Directory
  3. Oregon
  4. Portland
  5. Anesthesiology
  6. NPI Profile

DR. JENNIFER A WILLIAMS MD
NPI 1871502237
Anesthesiology in Portland, OR

Active since August 05, 2006PECOS EnrolledAccepts Medicare Assignment
707 SW WASHINGTON ST, STE 700, PORTLAND, OR 97205(503) 299-9906(503) 225-9002 Get Directions Write a Review

NPPES record last updated: October 22, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Jennifer A Williams Md NPPES

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

DR. JENNIFER A WILLIAMS MD (NPI 1871502237) is an individual anesthesiology provider in Portland, Oregon, licensed in Oregon (MD23211) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Salem Hospital, and is a graduate of Yale University School Of Medicine (1992).

NPPES Registry Identity

NPI1871502237
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. JENNIFER A WILLIAMSCredential: MD
Location Address707 SW WASHINGTON ST, STE 700Portland, OR 97205-3536
Mailing AddressPo Box 35147, #1801Seattle, WA 98124-5147 · (503) 299-9906 · Fax (503) 225-9002
Phone(503) 299-9906
Fax(503) 225-9002
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 1992
Enumeration DateAugust 5, 2006
Last NPPES UpdateOctober 22, 2018
✔ NPI 1871502237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in OR · MD23211
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
707 SW WASHINGTON ST, Portland, OR 97205
Open in Google Maps ↗

Other Identifiers 2

Medicaid8290967WA
OtherP00210684OR · Rr Medicare

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jennifer A Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254463995
PECOS Enrollment IDI20100716000115
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 Jennifer Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Salem Health
27 mi
Family Medicine
105 ARNEY RD STE 120
Woodburn, OR 97071
  • Reassigned Medicare billing, Oregon enrollment
  • 625 clinicians in this Medicare group
NPI 1578112066 (503) 184-4400
Salem Health West Valley
52 mi
Critical Access
525 SE WASHINGTON ST
Dallas, OR 97338
  • Reassigned Medicare billing, Oregon enrollment
  • 254 clinicians in this Medicare group
NPI 1245237486 (503) 623-8301

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Salem Hospital

Acute Care Hospitals · Salem, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380051
Location890 Oak Street, SESalem, OR 97301 · Marion County
Emergency services Birthing friendly

West Valley Hospital

Critical Access Hospitals · Dallas, OR
OwnershipVoluntary non-profit - Private
CMS Certification Number381308
Location525 SE Washington StreetDallas, OR 97338 · Polk County
Emergency services

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.

DR. JEFFREY PHILIP MAKO M.D.
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. PATRICIA N PANCOAST MD
Anesthesiology
707 SW WASHINGTON ST, STE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. XIANGHUA PAN MD
Anesthesiology
707 SW WASHINGTON ST, STE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. BRENT D. ANDERSEN MD
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. MATTHEW BUCKON MD
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. NIKKI B JAWORSKI M.D.
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. JONATHAN T. GUDMAN MD
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906
DR. MATTHEW S.A. BOLES MD
Anesthesiology
707 SW WASHINGTON ST, STE 700
PORTLAND, OR 97205
Multnomah County (503) 299-9906

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 Jennifer Williams's NPI number?

The NPI number for Jennifer Williams is 1871502237. It was assigned to this individual provider in the NPPES registry on August 5, 2006.

Where is Jennifer Williams located?

Jennifer Williams practices at 707 SW Washington St Ste 700, Portland, OR 97205. The listed phone number is (503) 299-9906.

What is Jennifer Williams's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Jennifer Williams enrolled in Medicare?

Yes. Jennifer Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Jennifer Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Williams reassigns Medicare benefits to 2 organizations: Salem Health (Woodburn, OR) and Salem Health West Valley (Dallas, 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 Jennifer Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Jennifer Williams affiliated with any hospitals?

According to CMS data, Jennifer Williams is affiliated with Salem Hospital and West Valley Hospital.

When was this NPI record last updated?

The NPPES record for Jennifer Williams was last updated on October 22, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.