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SEYMOUR MAYNARD BRONSTEIN M.D.
NPI 1114984424
Internal Medicine - Hematology & Oncology in La Grande, OR

Active since April 28, 2006PECOS Enrolled
900 SUNSET DR, LA GRANDE, OR 97850(541) 963-2828(541) 975-5132 Get Directions Write a Review

NPPES record last updated: January 9, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Seymour Maynard Bronstein M.d. NPPES

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

SEYMOUR MAYNARD BRONSTEIN M.D. (NPI 1114984424) is an individual hematology & oncology provider in La Grande, Oregon, licensed in Oregon (MD27924) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114984424
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameSEYMOUR MAYNARD BRONSTEINCredential: M.D.
Location Address900 SUNSET DRLa Grande, OR 97850-1387
Mailing Address900 Sunset DrLa Grande, OR 97850-1387 · (541) 963-2828 · Fax (541) 975-5132
Phone(541) 963-2828
Fax(541) 975-5132
Sole ProprietorNo
Enumeration DateApril 28, 2006
Last NPPES UpdateJanuary 9, 2012
✔ NPI 1114984424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in OR · MD27924
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
900 SUNSET DR, La Grande, OR 97850
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Other Identifiers 3

Medicare UPING48099ND
Medicare ID-Type Unspecified23554ND
Medicaid12758ND

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Seymour Maynard Bronstein M.d. 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 Reassignments

2

Medicare enrollment records show Seymour Bronstein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grande Ronde Hospital, Inc.
Same address
Critical Access
900 SUNSET DR
La Grande, OR 97850
  • Reassigned Medicare billing, Oregon enrollment
  • 167 clinicians in this Medicare group
NPI 1467446195 (541) 963-1472
Wallowa County Health Care District
41 mi
Critical Access Hospital
601 MEDICAL PARKWAY
Enterprise, OR 97828
  • Reassigned Medicare billing, Oregon enrollment
  • 40 clinicians in this Medicare group
NPI 1447256250 (541) 426-3111

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97850 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.64 typical visit price
range $54.96 – $166.64
Typical copayment $41.66 (range $13.74 – $41.66)
Most-billed visit code 99205
Established Patient
$97.16 typical visit price
range $17.68 – $136.19
Typical copayment $24.29 (range $4.42 – $34.04)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Skin barrier; solid, 4 x 4 or equivalent; each A4362
DME-Orthotic Devices · category DF010N
1 supplier12 claims190 services$2.69 avg. paid by Medicare
Ostomy pouch, urinary, with extended wear barrier attached, with built-in convexity, with faucet-type tap with valve (1 piece), each A4430
DME-Orthotic Devices · category DF010N
1 supplier12 claims130 services$7.02 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers19 claims19 services$20.15 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers19 claims19 services$112.96 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
7 suppliers56 claims2,564 services$0.63 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
6 suppliers35 claims35 services$16.71 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DANIELLE KIGGINS SISUL
Emergency Medicine
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
DR. GERALDINE GARDNER D.O.
Internal Medicine (Cardiovascular Disease)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-2328
SCOTT ALDEN WIDENER FNP-C
Nurse Practitioner
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-1412
AARON WELLS GRIGG MD
Pediatrics
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 663-3159
BAYLEE NANETTE SWALES RNFA
Registered Nurse (Registered Nurse First Assistant)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
AARON SPRACKLEN DO PC
Anesthesiology
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
KORREENE ANN DUBRAY
Nurse Practitioner (Adult Health)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
TIMOTHY KAISER SCHOENFELDER MD
Anesthesiology
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421

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 Seymour Bronstein's NPI number?

The NPI number for Seymour Bronstein is 1114984424. It was assigned to this individual provider in the NPPES registry on April 28, 2006.

Where is Seymour Bronstein located?

Seymour Bronstein practices at 900 Sunset Dr, La Grande, OR 97850. The listed phone number is (541) 963-2828.

What is Seymour Bronstein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Seymour Bronstein enrolled in Medicare?

Yes. Seymour Bronstein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Seymour Bronstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seymour Bronstein reassigns Medicare benefits to 2 organizations: Grande Ronde Hospital, Inc. (La Grande, OR) and Wallowa County Health Care District (Enterprise, 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 Seymour Bronstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Seymour Bronstein accept?

Health plans from Moda Health Plan, Inc. and Providence Health Plan list Seymour Bronstein 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 Seymour Bronstein was last updated on January 9, 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.