1. Home
  2. Directory
  3. Oregon
  4. Lake Oswego
  5. Internal Medicine
  6. NPI Profile

STEVEN A. HASHIGUCHI, MD, LLC
NPI 1295978732
Internal Medicine in Lake Oswego, OR

Active since April 14, 2009
16463 BOONES FERRY RD, #300, LAKE OSWEGO, OR 97035(503) 635-6256(503) 636-9604 Get Directions Write a Review

NPPES record last updated: April 14, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Steven A. Hashiguchi, Md, Llc NPPES

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

STEVEN A. HASHIGUCHI, MD, LLC (NPI 1295978732) is a healthcare organization registered as an internal medicine in Lake Oswego, Oregon and active in the NPI registry since April 2009. The organization lists Steven Anthony Hashiguchi, Sole Member, as its authorized official.

NPPES Registry Identity

NPI1295978732
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameSTEVEN A. HASHIGUCHI, MD, LLC
Location Address16463 BOONES FERRY RD, #300Lake Oswego, OR 97035-4259
Mailing Address16463 Boones Ferry Rd, #300Lake Oswego, OR 97035-4259 · (503) 635-6256 · Fax (503) 636-9604
Phone(503) 635-6256
Fax(503) 636-9604
Organization SubpartNo
Authorized OfficialSteven Anthony HashiguchiSole Member · (503) 635-6256
Enumeration DateApril 14, 2009
✔ NPI 1295978732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OR · MD15312
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
16463 BOONES FERRY RD, Lake Oswego, OR 97035
Open in Google Maps ↗

Other Identifiers 2

Medicaid087775OR
Medicare UPINE46706

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.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)

Steven A. Hashiguchi, Md, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Steven A. Hashiguchi, MD, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Steven Hashiguchi, MD
Internal Medicine
NPI 1184687428
16463 SW BOONES FERRY RD
Lake Oswego, OR 97035
(503) 635-6256
✔ PECOS✔ Accepts MedicareSame address

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 Steven A. Hashiguchi, MD, LLC's NPI number?

The NPI number for Steven A. Hashiguchi, MD, LLC is 1295978732. It was assigned to this organization in the NPPES registry on April 14, 2009.

Where is Steven A. Hashiguchi, MD, LLC located?

Steven A. Hashiguchi, MD, LLC is located at 16463 Boones Ferry Rd #300, Lake Oswego, OR 97035. The listed phone number is (503) 635-6256.

What is Steven A. Hashiguchi, MD, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Steven A. Hashiguchi, MD, LLC enrolled in Medicare?

Yes. Steven A. Hashiguchi, MD, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Steven A. Hashiguchi, MD, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Steven A. Hashiguchi, MD, LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Steven A. Hashiguchi, MD, LLC accept?

Health plans from Providence Health Plan list Steven A. Hashiguchi, MD, LLC 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 Steven A. Hashiguchi, MD, LLC was last updated on April 14, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.