Dr. Mark Thomas , MD
Surgery • Portland, OR
501 N Graham St Ste 555
Portland, OR 972272007
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 March 9, 2009; this date does not establish years in practice.
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Published CMS data list 214 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:
- 99231 — Subsequent hospital care with straightforward or low level of medical decision making, per day: 118 service units.
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 47 service units.
- 99291 — Critical care: 35 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 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 18 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:
- Gabapentin — 18 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 the full table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Surgery in Portland, OR (2024, 73 clinicians with data). Median for this group: 91. Middle half: 41 to 182.
More Medicare Part B services than 70% of clinicians listed under Surgery in Oregon (2024, 252 clinicians with data). Median for this group: 114. Middle half: 47 to 228.
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 109 in 2020 to 214 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
501 N Graham St Ste 555
Portland, OR 972272007
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 2 distinct group names: The Oregon Clinic, Pc; Vibra Physicians Llc. 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
University Of Louisville School Of Medicine
2008
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
66 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 $19,746 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 $15,731 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
23 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
$219 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 $28.28 in 2025
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 2025.
Years since graduation
18 years (graduated 2008)
CMS Doctors and Clinicians data list 2008 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
2009
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. Thomas 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. Thomas 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 Portland and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Surgery in Portland, OR (2024, 73 clinicians with data). Median for this group: 91. Middle half: 41 to 182.
More Medicare Part B services than 70% of clinicians listed under Surgery in Oregon (2024, 252 clinicians with data). Median for this group: 114. Middle half: 47 to 228.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Surgery in Portland, OR (2024, 73 clinicians with data). Median for this group: $12,774. Middle half: $4,400 to $28,216.
Close to the middle for clinicians listed under Surgery in Oregon (2024, 252 clinicians with data). Median for this group: $14,468. Middle half: $5,814 to $34,863.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Surgery in Portland, OR (2024, 73 clinicians with data). Median for this group: $9,628. Middle half: $3,432 to $21,976.
Close to the middle for clinicians listed under Surgery in Oregon (2024, 252 clinicians with data). Median for this group: $10,732. Middle half: $4,159 to $27,645.
Medicare Part D prescriptions
Fewer Part D prescriptions than 80% of clinicians listed under Surgery in Portland, OR (2024, 81 clinicians with data). Median for this group: 49. Middle half: 27 to 88.
Fewer Part D prescriptions than 85% of clinicians listed under Surgery in Oregon (2024, 281 clinicians with data). Median for this group: 61. Middle half: 35 to 125.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Surgery in Portland, OR (2024, 81 clinicians with data). Median for this group: $358. Middle half: $117 to $1,993.
A lower Part D drug cost than 65% of clinicians listed under Surgery in Oregon (2024, 281 clinicians with data). Median for this group: $536. Middle half: $145 to $3,038.
165 active clinicians are listed under Surgery with a practice address in Portland, OR (525 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Portland
25.5% of these 165 clinicians have the CMS telehealth indicator.
57% of these 165 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 96% from 109 in 2020 to 214 in 2024.
- 2020: 109
- 2021: 131
- 2022: 145
- 2023: 238
- 2024: 214
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Medicare-allowed amount
Medicare-allowed amount increased 242% from $5,766 in 2020 to $19,746 in 2024.
- 2020: $5,766
- 2021: $6,872
- 2022: $9,462
- 2023: $20,319
- 2024: $19,746
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Paid by Medicare
Paid by Medicare increased 241% from $4,610 in 2020 to $15,731 in 2024.
- 2020: $4,610
- 2021: $5,498
- 2022: $7,229
- 2023: $16,123
- 2024: $15,731
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 44% from 32 in 2020 to 18 in 2024.
- 2020: 32
- 2021: 29
- 2022: 27
- 2023: 23
- 2024: 18
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30-day fills
30-day fills decreased 28% from 32 in 2020 to 23 in 2024.
- 2020: 32
- 2021: 29
- 2022: 27
- 2023: 27
- 2024: 23
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Part D drug cost
Part D drug cost decreased 82% from $1,221 in 2020 to $219 in 2024.
- 2020: $1,221
- 2021: $1,199
- 2022: $829
- 2023: $188
- 2024: $219
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $47.75 in 2021 to $28.28 in 2025.
- 2021: $47.75
- 2024: $125.79
- 2025: $28.28
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $28.28.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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SpyGlass Discover | General | $28.28 |
Source: CMS Open Payments, program year 2025, 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 2018–2023 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, 2019–2024; 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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99231
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
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118 | 30 | $166.56 | $48.86 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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47 | 19 | $269.00 | $78.08 |
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99291
Critical care, first 30-74 minutes
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35 | 12 | $941.00 | $208.22 |
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15002
Preparation of skin graft site of trunk, arms, or legs, 100.0 sq cm or 1% body area for infants and children, or less
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14 | 11 | $1184.50 | $215.93 |
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 |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 18 | 585 | $218.93 | — |
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: 2021-11-29NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20190829002289
OR
8628213543
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
The Oregon Clinic, Pc
501 N Graham St, Portland, OR 972272007
Phone: 5032887535
Vibra Physicians Llc
10300 Ne Hancock St, Portland, OR 972203831
Phone: 5032575500
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Surgery
Doctor of Osteopathic Medicine (D.O.)
Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner
Surgery
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 501 N GRAHAM ST STE 555, PORTLAND, OR 972272007 (Tel: 5032887535)
Registered at 847 NE 19TH AVE STE 300, PORTLAND, OR 972322686 (Tel: 5039632801)
Surgery (license number reported to NPPES: OR MD192179)
NPI status registered as active in NPPES database
Registered at 34800 BOB WILSON DR, SAN DIEGO, CA 921341098 (Tel: 8886074860)
Registered at 3566 BUENA VISTA ST, SAN DIEGO, CA 921096610 (Tel: 3104223668)
Recorded as MARK THOMAS, MD
Military Hospital
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Portland
- Dr. Megan Lundeberg, MD
- Dr. Jeffrey Manchio, MD
- Dr. Rachel Van Dusen, MD
- Dr. Niknam Eshraghi, MD
- Dr. Samuel Torres Landa Fernandez, MD
- Dr. Nathalie Johnson, MD
Mailing Address
847 Ne 19th Ave Ste 300
Portland, OR 972322686
Phone: 5039632801