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MATTHEW WALTON M.D.
NPI 1952497737
Internal Medicine - Gastroenterology in Corvallis, OR

Active since October 05, 2006PECOS EnrolledAccepts Medicare Assignment
98.71/100
CMS Quality Rating
3521 NW SAMARITAN DR, SUITE 101, CORVALLIS, OR 97330(541) 768-6119(541) 768-6120 Get Directions Write a Review

NPPES record last updated: March 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Matthew Walton M.d. NPPES

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

MATTHEW WALTON M.D. (NPI 1952497737) is an individual gastroenterology provider in Corvallis, Oregon, licensed in Oregon (MD29243) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Medical University Of South Carolina College Of Medicine (2002).

NPPES Registry Identity

NPI1952497737
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMATTHEW WALTONCredential: M.D.
Location Address3521 NW SAMARITAN DR, SUITE 101Corvallis, OR 97330-4744
Mailing AddressPo Box 1189Corvallis, OR 97339-1189
Phone(541) 768-6119
Fax(541) 768-6120
Sole ProprietorYes
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 2002
Enumeration DateOctober 5, 2006
Last NPPES UpdateMarch 21, 2025
NPPES CertifiedMarch 21, 2025
✔ NPI 1952497737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in OR · MD29243
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
3521 NW SAMARITAN DR, Corvallis, OR 97330
Open in Google Maps ↗

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 and accepts Medicare assignment

Matthew Walton M.d. 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 ID7113063405
PECOS Enrollment IDI20090929000544
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

4

Medicare enrollment records show Matthew Walton reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Good Samaritan Hospital Corvallis
Same address
Internal Medicine
3521 NW SAMARITAN DR STE 201
Corvallis, OR 97330
  • Reassigned Medicare billing, Oregon enrollment
  • 522 clinicians in this Medicare group
NPI 1063787851 (541) 768-5140
Corvallis Gastroenterology PC
Same address
Specialist
3521 NW SAMARITAN DR, SUITE 101
Corvallis, OR 97330
  • Reassigned Medicare billing, Oregon enrollment
  • 12 clinicians in this Medicare group
NPI 1124075627 (541) 768-6119
Mid-Valley Healthcare, Inc.
4.8 mi
Pain Medicine
5234 SW PHILOMATH BLVD STE C
Corvallis, OR 97333
  • Reassigned Medicare billing, Oregon enrollment
  • Also billed through NPI 1508122763 (Oregon)
  • 416 clinicians in this Medicare group
NPI 1164942611 (541) 451-7450
Albany General Hospital
6.8 mi
Family Medicine
1086 7TH AVE SW STE 101
Albany, OR 97321
  • Reassigned Medicare billing, Oregon enrollment
  • 432 clinicians in this Medicare group
NPI 1306679816 (541) 812-5530

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

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
220 services219 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
85 services84 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
37 services37 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
34 services34 patients
Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248
This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.
21 services21 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
20 services20 patients

Hospital Affiliations CMS Care Compare 5

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

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

Good Samaritan Regional Medical Center

Acute Care Hospitals · Corvallis, OR
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380014
Location3600 NW Samaritan DriveCorvallis, OR 97330 · Benton County
Emergency services Birthing friendly

Samaritan Albany General Hospital

Acute Care Hospitals · Albany, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number380022
Location1046 6th Avenue SWAlbany, OR 97321 · Linn County
Emergency services Birthing friendly

Samaritan Pacific Community Hospital

Critical Access Hospitals · Newport, OR
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number381314
Location930 SW Abbey StreetNewport, OR 97365 · Lincoln County
Emergency services Birthing friendly

Samaritan Lebanon Community Hospital

Critical Access Hospitals · Lebanon, OR
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number381323
Location525 N Santiam HighwayLebanon, OR 97355 · Linn County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97330 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
$126.25 typical visit price
range $54.96 – $166.64
Typical copayment $31.56 (range $13.74 – $41.66)
Most-billed visit code 99204
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality87.18
Promoting Interoperability100
Improvement Activities40
Cost91.87

Reported Quality Measures

Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
71%100 patients4/55-star benchmark: 85%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
68%281 patients1/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%796 patients4/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
62%290 patients1/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
31%170 patients2/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 79% · 29 patients
93%29 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
81%397 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
38%397 patients2/55-star benchmark: 89%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 66 patients
2%66 patients4/55-star benchmark: 100%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
1%397 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 14

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

DR. STANLEY J. NUDELMAN M.D.
Internal Medicine
3521 NW SAMARITAN DR, SUITE 201
CORVALLIS, OR 97330
Benton County (541) 768-5140
MS. MARIA R. CLARK-HARMON ANP
Nurse Practitioner (Adult Health)
3521 NW SAMARITAN DR, SUITE 201
CORVALLIS, OR 97330
Benton County (541) 768-5140
MS. DEIDRE I GREENE ANP
Nurse Practitioner
3521 NW SAMARITAN DR, SUITE 201
CORVALLIS, OR 97330
Benton County (541) 768-5140
CORVALLIS GASTROENTEROLOGY PC
Specialist
3521 NW SAMARITAN DR, SUITE 101
CORVALLIS, OR 97330
Benton County (541) 768-6119
MR. DEAN CROWELL PA, ATC
Physician Assistant
3521 NW SAMARITAN DR, STE 101
CORVALLIS, OR 97330
Benton County (541) 768-6119
JOSHUA WONG
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
3521 NW SAMARITAN DR
CORVALLIS, OR 97330
Benton County (541) 768-5185
MRS. DENA M. HULTING PA-C
Physician Assistant
3521 NW SAMARITAN DR, SUITE 101
CORVALLIS, OR 97330
Benton County (541) 768-6119
KRISTEN HENRY REEVE PA-C
Physician Assistant
3521 NW SAMARITAN DR, SUITE 101
CORVALLIS, OR 97330
Benton County (541) 768-6119

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 Matthew Walton's NPI number?

The NPI number for Matthew Walton is 1952497737. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Matthew Walton located?

Matthew Walton practices at 3521 NW Samaritan Dr Suite 101, Corvallis, OR 97330. The listed phone number is (541) 768-6119.

What is Matthew Walton's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Matthew Walton enrolled in Medicare?

Yes. Matthew Walton 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 Matthew Walton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Walton reassigns Medicare benefits to 4 organizations: Good Samaritan Hospital Corvallis (Corvallis, OR), Corvallis Gastroenterology PC (Corvallis, OR), Mid-Valley Healthcare, Inc. (Corvallis, OR) and Albany General Hospital (Albany, 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 Matthew Walton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Walton accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Matthew Walton 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.

Is Matthew Walton affiliated with any hospitals?

According to CMS data, Matthew Walton is affiliated with Ohsu Hospital And Clinics, Good Samaritan Regional Medical Center, Samaritan Albany General Hospital, Samaritan Pacific Community Hospital and Samaritan Lebanon Community Hospital.

When was this NPI record last updated?

The NPPES record for Matthew Walton was last updated on March 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.