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DR. GREGORY ALAN PATTON M.D.
NPI 1275536948
Radiology - Radiation Oncology in Portland, OR

Active since May 24, 2005PECOS Enrolled
265 N BROADWAY ST, PORTLAND, OR 97227(503) 528-5013(503) 528-5255 Get Directions Write a Review

NPPES record last updated: June 2, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gregory Alan Patton M.d. NPPES

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

DR. GREGORY ALAN PATTON M.D. (NPI 1275536948) is an individual radiation oncology provider in Portland, Oregon, licensed in Oregon (MD23154) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275536948
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameDR. GREGORY ALAN PATTONCredential: M.D.
Location Address265 N BROADWAY STPortland, OR 97227-1800
Mailing Address265 N Broadway StPortland, OR 97227-1800 · (503) 528-5013 · Fax (503) 528-5255
Phone(503) 528-5013
Fax(503) 528-5255
Sole ProprietorNo
Enumeration DateMay 24, 2005
Last NPPES UpdateJune 2, 2014
✔ NPI 1275536948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License✔ Licensed in OR · MD23154
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Also ListedRadiology · Therapeutic RadiologyTaxonomy 2085R0203X · License MD23154 (OR)
265 N BROADWAY ST, Portland, OR 97227
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Other Identifiers 5

Medicaid168689OR
Medicare PING8882687WA
Medicare UPINC76235OR
Medicaid1006524WA
Medicare PIN110278OR

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Alan Patton 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 Reassignment

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

Northwest Cancer Specialists PC
9.7 mi
Hematology & Oncology
1498 SE TECH CENTER PL, SUITE 240
Vancouver, WA 98683
  • Reassigned Medicare billing, Oregon enrollment
  • 57 clinicians in this Medicare group
NPI 1407828114 (360) 597-1300

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 97227 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

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

DR. ANGELA KALISIAK M.D.
Internal Medicine (Hospice and Palliative Medicine)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
DR. TONY V HO MD
Internal Medicine (Hematology & Oncology)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
VANESSA KATHLEEN SANNE RN, FNP-C
Nurse Practitioner (Family)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
DR. NICOLAAS W DE WETTE M.D.
Radiology (Radiation Oncology)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
DR. RALPH ELLIOTT WEINSTEIN M.D.
Internal Medicine (Hematology & Oncology)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
DR. REGAN MON LOOK M.D.
Internal Medicine (Medical Oncology)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
DR. SPENCER HSIAO-YANG SHAO M.D.
Internal Medicine (Medical Oncology)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 280-1223
JENNIFER HOPE CHRISTIANSEN P.A.
Physician Assistant (Surgical)
265 N BROADWAY ST
PORTLAND, OR 97227
Multnomah County (503) 274-4885

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 Gregory Patton's NPI number?

The NPI number for Gregory Patton is 1275536948. It was assigned to this individual provider in the NPPES registry on May 24, 2005.

Where is Gregory Patton located?

Gregory Patton practices at 265 N Broadway St, Portland, OR 97227. The listed phone number is (503) 528-5013.

What is Gregory Patton's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Gregory Patton enrolled in Medicare?

Yes. Gregory Patton is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Patton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Patton reassigns Medicare benefits to Northwest Cancer Specialists PC (Vancouver, WA). 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 Gregory Patton'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 Gregory Patton was last updated on June 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.