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DR. RICHARD OTIS BUCK MD
NPI 1730166828
Allergy & Immunology in Eugene, OR

Active since December 29, 2005PECOS Enrolled
2201 WILLAMETTE ST, SUITE C, EUGENE, OR 97405(541) 683-0730(541) 683-4411 Get Directions Write a Review

NPPES record last updated: May 2, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Richard Otis Buck Md NPPES

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

DR. RICHARD OTIS BUCK MD (NPI 1730166828) is an individual allergy & immunology provider in Eugene, Oregon, licensed in Oregon (MD11569) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1730166828
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameDR. RICHARD OTIS BUCKCredential: MD
Location Address2201 WILLAMETTE ST, SUITE CEugene, OR 97405-3091
Mailing Address2201 Willamette St, Suite CEugene, OR 97405-3091 · (541) 683-0730 · Fax (541) 683-4411
Phone(541) 683-0730
Fax(541) 683-4411
Sole ProprietorYes
Enumeration DateDecember 29, 2005
Last NPPES UpdateMay 2, 2008
✔ NPI 1730166828 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in OR · MD11569
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
2201 WILLAMETTE ST, Eugene, OR 97405
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Other Identifiers 6

Medicare ID-Type UnspecifiedR109005OR
Other030005151OR · Railroad Medicare
Medicare UPINC92307OR
Other831390001Blue Cross
Medicaid041764OR
OtherC92307Providence

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Richard Otis Buck Md 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 Reassignment

Medicare enrollment records show Richard Buck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lane County Oregon
5.1 mi
Federally Qualified Health Center (FQHC)
2073 OLYMPIC ST
Springfield, OR 97477
  • Reassigned Medicare billing, Oregon enrollment
  • 143 clinicians in this Medicare group
NPI 1326138314 (541) 682-3550

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

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAVID RICHARD MATTHEWS DMD
Dentist
2201 WILLAMETTE ST, STE A
EUGENE, OR 97405
Lane County (541) 343-3722
GREGORY F. KOORS
Chiropractor
2201 WILLAMETTE ST, SUITE C
EUGENE, OR 97405
Lane County (541) 683-5678
MR. RANDY MARION LITWILLER RDH
Dental Hygienist
2201 WILLAMETTE ST, SUITE A
EUGENE, OR 97405
Lane County (541) 343-3722

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 Richard Buck's NPI number?

The NPI number for Richard Buck is 1730166828. It was assigned to this individual provider in the NPPES registry on December 29, 2005.

Where is Richard Buck located?

Richard Buck practices at 2201 Willamette St Suite C, Eugene, OR 97405. The listed phone number is (541) 683-0730.

What is Richard Buck's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Richard Buck enrolled in Medicare?

Yes. Richard Buck is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Richard Buck's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Richard Buck reassigns Medicare benefits to Lane County Oregon (Springfield, OR). The 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 Richard Buck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Richard Buck accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Richard Buck 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 Richard Buck was last updated on May 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.