Dr. Gregory David Schwartz , MD
Specialist • Corvallis, OR
3521 Nw Samaritan Dr, Suite 101
Corvallis, OR 973304744
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on June 8, 2006; this date does not establish years in practice.
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Published CMS data list 689 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 45385 — Removal of polyps or growths of large bowel using an endoscope with mechanical snare: 178 service units.
- 45380 — Biopsy of large bowel using a flexible endoscope: 154 service units.
- 43239 — Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope: 108 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 13 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,052 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) — 469 prescription fills, including refills.
- Omeprazole — 181 prescription fills, including refills.
- Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) — 66 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 18 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Specialist in Oregon (2024, 61 clinicians with data). Median for this group: 650. Middle half: 279 to 2,158.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 530 in 2020 to 689 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
3521 Nw Samaritan Dr
Suite 101
Corvallis, OR 973304744
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Good Samaritan Hospital Corvallis. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2000
What Public CMS Data Show
Specialist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
513 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $101,561 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $83,009 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
1,347 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$147,003 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $13.75 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
26 years (graduated 2000)
CMS Doctors and Clinicians data list 2000 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Schwartz has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Schwartz as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Corvallis and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Specialist in Oregon (2024, 61 clinicians with data). Median for this group: 650. Middle half: 279 to 2,158.
Too few clinicians listed under Specialist in Corvallis have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Specialist in Oregon (2024, 61 clinicians with data). Median for this group: $51,596. Middle half: $25,630 to $137,182.
Too few clinicians listed under Specialist in Corvallis have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Specialist in Oregon (2024, 61 clinicians with data). Median for this group: $39,532. Middle half: $17,755 to $111,826.
Too few clinicians listed under Specialist in Corvallis have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Specialist in Oregon (2024, 64 clinicians with data). Median for this group: 355. Middle half: 104 to 1,178.
Too few clinicians listed under Specialist in Corvallis have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Specialist in Oregon (2024, 64 clinicians with data). Median for this group: $22,641. Middle half: $1,246 to $124,627.
Too few clinicians listed under Specialist in Corvallis have Medicare Part D data for 2024 to compare.
27 active clinicians are listed under Specialist with a practice address in Corvallis, OR (1,085 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Corvallis
7.4% of these 27 clinicians have the CMS telehealth indicator.
14.8% of these 27 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 30% from 530 in 2020 to 689 in 2024.
- 2020: 530
- 2021: 609
- 2022: 611
- 2023: 531
- 2024: 689
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Medicare-allowed amount
Medicare-allowed amount increased 34% from $75,773 in 2020 to $101,561 in 2024.
- 2020: $75,773
- 2021: $88,607
- 2022: $88,845
- 2023: $79,888
- 2024: $101,561
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Paid by Medicare
Paid by Medicare increased 36% from $61,148 in 2020 to $83,009 in 2024.
- 2020: $61,148
- 2021: $70,813
- 2022: $69,959
- 2023: $66,637
- 2024: $83,009
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 28% from 821 in 2020 to 1,052 in 2024.
- 2020: 821
- 2021: 766
- 2022: 839
- 2023: 914
- 2024: 1,052
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30-day fills
30-day fills increased 28% from 1,052 in 2020 to 1,347 in 2024.
- 2020: 1,052
- 2021: 991
- 2022: 1,101
- 2023: 1,180
- 2024: 1,347
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Part D drug cost
Part D drug cost decreased 35% from $224,896 in 2020 to $147,003 in 2024.
- 2020: $224,896
- 2021: $117,364
- 2022: $53,261
- 2023: $54,420
- 2024: $147,003
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $71.05 in 2019 to $13.75 in 2024.
- 2019: $71.05
- 2022: $129.07
- 2023: $32.38
- 2024: $13.75
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $13.75.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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— | General | $13.75 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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178 | 177 | $1497.00 | $233.11 |
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45380
Biopsy of large bowel using a flexible endoscope
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154 | 154 | $1434.00 | $120.67 |
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43239
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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108 | 105 | $1247.00 | $75.72 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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45 | 38 | $395.00 | $121.15 |
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G0105
Colorectal cancer screening; colonoscopy on individual at high risk
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45 | 45 | $1121.00 | $169.74 |
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43248
Insertion of guide wire with dilation of esophagus using a flexible endoscope
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36 | 36 | $1368.00 | $124.53 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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31 | 26 | $295.00 | $87.50 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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21 | 20 | $424.00 | $120.58 |
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G0121
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
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17 | 17 | $1121.00 | $171.63 |
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45378
Diagnostic exam of large bowel using a flexible endoscope
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15 | 15 | $1121.00 | $156.16 |
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43235
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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14 | 14 | $953.00 | $90.58 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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13 | 13 | $511.00 | $160.22 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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12 | 12 | $603.00 | $156.49 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Peg 3350-Electrolyte | Sodium Chloride/Nahco3/Kcl/Peg | 469 | 816 | $12,652.87 | 461 |
| Omeprazole | Omeprazole | 181 | 10,294 | $2,110.56 | 47 |
| Sod Sulf-Potass Sulf-Mag Sulf | Sodium, Potassium,mag Sulfates | 66 | 123 | $4,575.05 | 66 |
| Pantoprazole Sodium | Pantoprazole Sodium | 42 | 2,460 | $1,752.85 | 13 |
| Cholestyramine | Cholestyramine (With Sugar) | 35 | 1,572 | $1,618.90 | — |
| Azathioprine | Azathioprine | 31 | 1,871 | $1,075.99 | — |
| Sutab | Sod Sulf/Pot Chloride/Mag Sulf | 29 | 55 | $4,587.66 | 29 |
| Budesonide Dr | Budesonide | 28 | 1,350 | $3,049.22 | — |
| Ondansetron Hcl | Ondansetron Hcl | 26 | 662 | $158.68 | — |
| Gavilyte-N | Sodium Chloride/Nahco3/Kcl/Peg | 25 | 45 | $503.34 | 25 |
| Mesalamine | Mesalamine | 25 | 1,140 | $11,099.33 | — |
| Promethazine Hcl | Promethazine Hcl | 18 | 180 | $40.14 | — |
| Ondansetron Odt | Ondansetron | 14 | 154 | $124.98 | — |
| Humira(Cf) Pen | Adalimumab | 14 | 392 | $91,760.62 | — |
| Metoclopramide Hcl | Metoclopramide Hcl | 13 | 399 | $135.81 | — |
| Gavilyte-G | Peg3350/Sod Sulf,bicarb,cl/Kcl | 13 | 19 | $241.49 | 13 |
| Linzess | Linaclotide | 12 | 570 | $9,971.55 | — |
| Mesalamine Er | Mesalamine | 11 | 510 | $1,543.98 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-03-21NUCC Taxonomy Code: 174400000X
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GASTROENTEROLOGY
I20060810000187
OR
3274536388
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Good Samaritan Hospital Corvallis
3600 Nw Samaritan Dr, Corvallis, OR 973303737
Good Samaritan Hospital Corvallis
3509 Nw Samaritan Dr, Corvallis, OR 973303893
Good Samaritan Hospital Corvallis
3615 Nw Samaritan Dr, Corvallis, OR 973303771
Good Samaritan Hospital Corvallis
3600 Nw Samaritan Dr, Corvallis, OR 973303737
Phone: 5417681261
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant - Medical
Physician Assistant (Certified)
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant, Certified Athletic Trainer
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at PO BOX 1189, CORVALLIS, OR 973391189
NPI status registered as active in NPPES database
Registered at 3521 NW SAMARITAN DR, SUITE 101, CORVALLIS, OR 973304744 (Tel: 5417686119)
Registered at 3521 NW SAMARITAN DR, SUITE 101, CORVALLIS, OR 973304744 (Tel: 5417686119)
Recorded as GREGORY SCHWARTZ, MD
Specialist (license number reported to NPPES: OR MD26631)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Specialists in Corvallis
All Specialists in CorvallisMailing Address
Po Box 1189
Corvallis, OR 973391189